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Chemistry 101 Q&A Archive of May 4, 2023

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May 4 of 2023

Hydrohalogenation of Alkynes
Can anyone help me in detail please ?
What is the concentration of Al3+ ions in a solution of AlBr3 having a Br- concentration of 0.142 M?
If it takes 25.22 mL of H3PO4 to neutralize 35.22 mL of 0.313 M Ba(OH)2, what is the molarity of H3PO4?
Calculate the following. Determine if the solution is acidic, basic, or neutral. a. pH of a [H+] = 0.35 M solution b. pH of a [H+] = 3.6 x 10-8 M solution c. [H+] of a solution with pH = 8.75 d. [H+] of a solution with pH = 7.00
What volume of H2 gas, at 27°C and 700. torr, can be made by reacting 5.00 g zinc metal with 100. mL of 0.350 M HCl?
what is the pH of a 4.1 ×10-6 M HBr solution
What volume of H2 gas, at 27°C and 700. torr, can be made by reacting 5.00 g zinc metal with 100. mL of 0.350 M HCl?
Determine how many mL of 0.784 M H2S are needed to neutralize 75.0 mL of 0.853 M KOH.
A 10.3 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 361,812 J. If the specific heat of copper is 390 J/g oC, what is the change of the copper's temperature?
In standardizing a soln of NaOH against 1.431 g potassium acid phthalate, the analyst uses 35.50 m of the alkali and has to run back with 5.12 ml of acid (1.000 ml ≈0.003100 g Na2O). what is the normality of the NaOH soln?
25. Select the statements in the right column that best describe the metabolism of an individual organ, tissue or cells in the left column. a) brain … (1) release of glycerol and fatty acids in blood during starvation b) muscles (2) under normal conditions of use glucose as an exclusive…
Calculate ΔH° for the reaction: N2O5(g) + H2O(l) → 2HNO3(l)
Iron reacts with oxygen to form one mole iron (III) oxide releasing 826 kJ of heat. How much heat is released when 10.0 g Fe reacts with 5.00 g O2?
Write the formula for the conjugate base for the HC2H3O2 . Express your answer as an ion.
Write the formula for the conjugate base for the HCO3− . Express your answer as an ion.
Calculate the heat in kJ for 9.98 g of ice at -10.0 oC cooled to -75.0 oC with a specific heat capacity of 2.087 J/(g·oC).
10. Use the equation below to calculate the following. a. Balance the reaction. ___ Ca(NO3)2 (aq) + ___ Na3PO4 (aq) → ___ Ca3(PO4)2 (s) + ___ NaNO3 (aq) b. Moles of Na3PO4 needed to react with 1.45 L of 0.225 M Ca(NO3)2 c. Volume of 0.250 M Na3PO4 needed to react with 15.00 mL of 0.500 M…
When sodium carbonate dissolves in water, the carbonate ion, CO32− , acts as a base. Enter a balanced equation for the reaction of the carbonate ion with water. Express your answer as a chemical equation. Identify all of the phases in your answer.
A mixt. weighing 1.000 g consists of equal parts by wt of Na2CO3 and K2CO3. It is dissolved in water and 17.36 m of 1.075 N acid are added. Is the soln. acid or alkaline? What vol. of 1.075 N acid should be added to make the solution neutral?
A wastewater contains 250 mg/L of CgHiO4 and 25 mg/L of NH4*-N. Calculate the COD and TOD (total oxygen demand including organic oxidation and nitrification).
Chemical Reaction Engineering A liquid phase reaction of the form A + 2B -> C, with a rate expression given by -rA = kCACB/Cc^1.9, is carried out in a piston flow reactor (PFR). The feed contains CAo = 0.0036 mol/L, Cso = 0.00756 mol/L, and Cco = 0.0059 mol/L, and k1 = 0.086 mol/L.day.…
Title: Fluid Flow and Pressure Calculation in a Dye Suction Device Question 3: A dye suction device is arranged, as shown in Figure 3. The volumetric flow rate of air through the main pipe at circular cross-section (1) is given as Q = 0.0164 m^3/s and the volumetric flow rate of the dye which…
Calculate the temperature at the junction. k=0.12 Steel: L=15cm k=0.49 Aluminum: L=60cm k=0.26 Brass: L=25cm. The lengths and thermal conductivities of the rods are: 120C. The end of the aluminum rod is at 100C and the ends of the steel and brass rods are at 0C.
3 6 o Number of Students Practical Training 1 Practical Training 2 a) Draw a stacked bar graph showing the number of students doing their first and Table 1. Number of students doing internship in various sectors Sector. Petrochemical Construction and building poo Paper-packaging Paint and ink
Calculate the enthalpy of mixing when 105 mol of poly(methyl methacrylate) with Mn = 105 g/mol and p = 1.2 g/cm³ are dissolved in 150 g of CHCl3 (p = 1.49 g/cm³) at 20 °C. Assume the volumes are additive and x = 0.377.
Paneli slerim Lantilar The following results were obtained for an enzyme-catalyzed reaction in the absence and presence of an inhibitor. Determine the type of inhibition. If Ki for this system is 2.9 mmol.L¹, calculate the inhibitor concentration present. Vmax (mmol.L⁻¹.min⁻¹) KM…
Chemical Reaction Engineering A mixture containing 35% of A, 46% of B, 14% of C, and 5% of an inert substance is fed into a batch reactor, where at a constant temperature of 100°C and constant volume, the elemental reaction A + B -> 3C takes place in the gas phase. In order to ensure the…
Question 1: [24 marks] Air stored in a closed vessel of fixed volume 0.2 m^3 exerts a pressure of 10 bar and 25°C. If the vessel is cooled so that the pressure falls to 3.5 bar, determine (i) the final temperature, [6 marks] (ii) the heat transferred, and [10 marks] (iii) the change in…
Chemical Reaction Engineering After 49 minutes at a temperature of 20°C in a batch reactor, the liquid phase reaction A -> B + C with a known stoichiometry reaches a conversion of 0.710. When the same reaction is carried out at a temperature of 60°C, it reaches a conversion of 0.977 after 16…
If the feed flow rate of substance A to the reactor is 10 mol/min, to reach 80% conversion, considering the required reactor volumes, which of the following reactors should be preferred? a. CSTR (x:0-0.8)* b. PF (x:0-0.8)* c. CSTR (x:0-0.4)*--CSTR(x:0.4-0.8)* d.…
Table and Chart Development (20 pts.) a) Draw a stacked bar graph showing the number of students doing their first and second internships in different sectors according to Table 1. Table 1: Number of students doing internships in various sectors Number of Students Sector Practical…
Chemical Reaction Engineering 1. Decide on the best reactor system for the desired conversion using the xA-1/-rA values given in Table 1. To make a decision, show the areas corresponding to the reactors on the graph you have drawn. Calculate the volumes of the reactors you use. FAo=100 mol/min…
Decide on the best reactor system for the desired conversion using the xA-1/-rA values given in Table 1. To make a decision, show the areas corresponding to the reactors on the graph you have drawn. Calculate the volumes of the reactors you use. FAo=100 mol/min (Fitting a curve in Excel makes…
URGENT!! At P0 atmospheric pressure, the mixture containing %a, A %b, B %c, C and %i inert substances is fed to the batch reactor at 100 degrees Celsius. The gas phase reaction A + B ---> 3C occurs at constant temperature and constant volume. In terms of safety, we should evacuate the reactor…
Given: NA = 6.022x10^23 atoms/mole, Density, dCu = 8940 kg/m^3, M = 63.5 g/mol, h = 6.626x10^-34 J.s, me = 9.1x10^-31 kg) IV Given: N = 6.022x10^23 atoms/mole, Density, dCu = 8940 kg/m^3, M = 63.5 g/mol, h = 6.626x10^-34 J.s, me = 9.1x10^-31 kg) (a) Calculate the number of valence electrons…
Determine the enthalpy of complete combustion of propane at 25°C and 1 atm using the enthalpy of formation tables.
The following is the binodal diagram for benzene-n-hexane-ChClâ‚‚ ternary. The distribution coefficient of n-hexane for the tie line passing through point M is about 2.4.
Dodecane is burned with 180% of the theoretical air in a complete combustion process.
URGENT!! A->B+ C liquid phase reaction, which is known to be elementary, undergoes x1 transformation after t1 minutes at T1 temperature (Celsius degree) in a batch reactor. When the same reaction takes place at T2 temperature (Celsius degree), it undergoes x2 transformation after t2 minutes. If…
Draw a block flow diagram showing the ethylene oxide production process according to the following information: Air is compressed and then mixed with the ethylene feed. The mixed feed is superheated in a heat exchanger and is then sent to the reactor in which ethylene oxide is formed. The…
An ideal mixing (total volume inlet = total volume outlet) of two incompressible fluids, which is between water and methanol (SG = 0.85), is coming from two inlets. At inlet 1, water enters at 9 m/s and at inlet 2, methanol enters at 7 m/s. The diameter of inlet 1 and 2 is 4 cm and 3 cm. If the…
Oil, SG 0.8, flows inside a cubical reservoir with a velocity of 1.603 m/min at section 1. At the same time, the oil exits at section 2 with a velocity of 60 cm/s. The oil inside the reservoir is actually increasing its level, h, at a rate of 20 mm/s. The reservoir dimensions are 1m x 1m x…
For a brass alloy, the stress at which plastic deformation begins is 345 MPa. (a) What is the maximum load that may be applied to a specimen with an original crosssectional area of 130 mm without plastic deformation? (b) What is the engineering stress at the maximum load without plastic…
Q 3-) Br2(g) → 2 Br(g) (1 mol Br dissociates according to the above reaction). The total pressure of the reaction at 1400°C is 0.047 atm. The partial pressure of Br2 at equilibrium is 0.037 atm. a) Calculate the dissociation degree of this reaction. b) Calculate Kp and K at 1400°C for this…
Q 2-) The vapor pressures of pure acetone at 10°C and 50°C are 0.152 atm and 0.806 atm, respectively. a) Calculate the normal boiling point temperature of acetone from the given information. b) Calculate the molal boiling point constant (ebulioscopy constant) of acetone. c) How many grams of…
5 mol acetone (CH3COCH3) at 35°C is 0.75 atm. The vapor pressures of pure carbon, sulfur, and acetone at 35°C are 0.674 atm and 0.453 atm, respectively. a) What is the vapor pressure of the solution if the solution is ideal? b) Does the vapor pressure of the solution deviate from Raoult's…
4. Draw and define what grains and grain boundaries are. How are they created?
If a column design results in a column with too large a diameter, which of the following is/are possible remedies? Explain: decrease the reflux ratio, increase the pressure, and/or decrease the tray spacing.
What type of crystal unit lattice does this diffraction pattern result from? PCPDFWIN-[PDF#040850Wavelength=1.5405 A] PDFNumber Search PrintewData ConversionWindowClearHelp x Ref: Swanson.Tatge.Natl.Bur.Stand[U.S.LCirc.539.I.131953 Input = CuKa 3.6 1.8 1.3 1.0 0.9 0.8 d(A) d[A] Int- hk1|d[A)…
Find the Miller indices corresponding to the Bragg reflections Based on the JCPDS file provided to you, answer the following: PCPDFWIN - [PDF#040850, Wavelength = 1.5405 Ã…, PDFNumber Search Print ew Data Conversion Window Clear Help x -16x Ref: Swanson, Tatge. Nal. Bu. Stand. U.S. LCirc.…
Find the Bragg angles corresponding to the position of the diffraction lines. Based on the JCPDS file provided to you, answer the following: PCPDFWIN-[PDF#040850, Wavelength=1.5405A] x Ref: Swanson, Tatge, Nall, Bu, Stand [U.S. LCirc.539.I.131953] Input = Cu Ka pax 1 3.6 1.8 1.3 1.0 0.9 0.8…
A composite wall is to be constructed for a furnace. There's a window and two stainless steel bolts in the particular area that we are interested in. The temperature outside the furnace (T2) is always 30°C due to the hot processing environment. The dimensions and characteristics of the wall…
Use the graphs below to answer the following questions: What is the effect of yarn wind-up (take-up) speed on the mechanical properties of Nylon 6 fibers? How does the microstructure of Nylon 6 yarns change with wind-up speed? 12.0 -500 m/min As-spun 500 m/min DR=2.0 500 m/min DR=3.0 10.0 -500…
Text: Urgent please solve this question with numbers, not explanation. CO and CH are the two main gases causing global warming through the greenhouse gas effect. They are also the main components of biogas (roughly 35-50% CO and 50-65% CH), natural gas (roughly 70-95% CH), and flue gas mainly…
10C water flows from a large reservoir at 1.5x10^-2 m/s through the system shown below. The water leaves the tank through an inward projecting pipe (K=0.78). Please fill in the Answer Table. 7.5 m 4-inch type K copper tube 12 m All elbows are standard Flow B 70 m
You have a tank filled with gas. The tank has a nozzle that will let the gas flow to the outside of the tank. The details are below: Please fill in the Answer Tables: Gas: Nitrogen Nozzle: 1 Schedule: 80 Tank Pressure (kPag): 349 Tank Temperature (°C): 42
The molar mass of ketone is 888 grams per cubic meter. Click the icon to view the conversion table. Click the icon to view the table of common derived units in the System.
The answer is 0.11 day-1. The first-order decay coefficient, k, at 100°C is 0.1 day-1. What is the coefficient at a temperature of 150°C if theta is 1.02?
Question 4 10 pts Tempering internal stresses caused by quenching none of the above reduces increases does not affect
If there are not enough capillaries within a tissue, there may be regions of tissue in which the oxygen concentration vanishes. If such a region, called the anoxic region, persists for prolonged periods of time, the cells would die, and the tissue would be considered necrotic. Using the below…
What measure of stability is needed if a sludge from a wastewater treatment plant is to be a) placed on the White House Lawn [0.5 pts], b) dumped into a trout stream [0.5 pts], c) sprayed on a playground [0.5 pts], d) sprayed on a vegetable garden [0.5 pts], e) if you are hired as a consultant…
A clarifier is a pollution control technology device in a wastewater treatment plant. Looking back in Chapter 5 (textbook, answer question 5.7, page 220 reproduced here for your convenience): Describe the condition(s) of the primary clarifier one day after the pump for the raw sludge broke…
- Identify and describe briefly three common law theories that must be applied to fight against the citing of used automobile tires. [3pts] - If you were to be hired by SLU as an expert witness, how would you counsel SLU in this scenario-case i.e against building the incinerator plant? [2pts]
An air pollution control technology device is receiving a waste gas stream of 40 m3/minute that contains 2000 ug/m3 of Particulate Matter (PM) or aerosols. The emission from the control device has a PM concentration of 80 g/m3. Use the steps shown below to calculate the removal efficiency,…
Estimate the particulate removal efficiency for a cyclone as a pollution control technology to remove particulates of the size shown below: a) 100 microns b) 10 microns c) 1 mm d) 0.1 mm e) Draw a Y-axis-Removal Efficiency vs X-axis-Particle Diameter Curve f) What conclusions must be drawn from…
Fact 1: A stack emission (a plume) has 90% SO2 and 10% N2, and no particulate matter (PM). [1] What pollution control technology must be suggested/recommended? [1 pt] [2] Justify the answer in 1 above, i.e. Why do you suggest/recommend the technology? [1 pt]
Given the continuous cooling transformation diagram, fill in the blanks. Temperature (°C) 800 700 600 500 400 300 200 100 0 10-1 1 2 3 1: Austenite 10 1: M(start); 2: M(50%); 3: M(90%) O 1: M(start); 2: M(90%); 3: M(50%) 1: M(90%); 2: M(50%); 3: M(start) O 1: M(50%); 2: M(start); 3:…
Given the continuous cooling transformation diagram, fill in the blanks. 800 1400 Eutectoid temperature 700 dne 1200 600 Continuous cooling transformation 1000 800 Temperature (°F) 600 500 400 200 400 100 200 Cooling curve 0 10^-1 1 10^2 10^3 Time (s) 10^4 10^5 1: M (start) 2: M 90% 3: M…
The temperature of your coffee is 50°C at t=0. How long will it take for the temperature to reach 35°C if the rate of heat loss from the surface is constant at 2500 W/m^2? Assume the cup has a diameter of 10 cm and a height of 20 cm. The area of the cup is Ï€ * radius^2. Assume the bottom and…
Given the diagram for martensite formation, fill in the blanks: a(BCC) + FeC quench tempering O(FCC) O M(BCT) Oa none of the above
Question 9 10 pts For the eutectoid transformation to occur in the Fe-FeC system, it must be cooled below 727°C. Question 10 10 pts The recrystallization rate increases with temperature.
Homogeneous nucleation requires: - Considerable supercooling (typically 80-100°C) - Considerable supercooling (typically 80-300°C) - Only very slight supercooling (0.1-10°C) - Considerable supercooling (typically 0-300°C)
ANS. 14.9 ft SHOW THE SOLUTION COPIED ANSWER=REPORT Problems 8 and 9 are based on the following information: It is required to dry natural gas containing 80 lbs of water per 10 ft by passing it through a bed of activated alumina gel in two adsorption towers. Data: Natural gas to be dried = 1 x…
What is the concentration of Al3+ ions in a solution of AlBr3 having a Br- concentration of 0.142 M?
If it takes 25.22 mL of H3PO4 to neutralize 35.22 mL of 0.313 M Ba(OH)2, what is the molarity of H3PO4?
Calculate the following. Determine if the solution is acidic, basic, or neutral. a. pH of a [H+] = 0.35 M solution b. pH of a [H+] = 3.6 x 10-8 M solution c. [H+] of a solution with pH = 8.75 d. [H+] of a solution with pH = 7.00
What volume of H2 gas, at 27°C and 700. torr, can be made by reacting 5.00 g zinc metal with 100. mL of 0.350 M HCl?
What volume of H2 gas, at 27°C and 700. torr, can be made by reacting 5.00 g zinc metal with 100. mL of 0.350 M HCl?
Determine how many mL of 0.784 M H2S are needed to neutralize 75.0 mL of 0.853 M KOH.
A 10.3 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 361,812 J. If the specific heat of copper is 390 J/g oC, what is the change of the copper's temperature?
In standardizing a soln of NaOH against 1.431 g potassium acid phthalate, the analyst uses 35.50 m of the alkali and has to run back with 5.12 ml of acid (1.000 ml ≈0.003100 g Na2O). what is the normality of the NaOH soln?
Calculate ΔH° for the reaction: N2O5(g) + H2O(l) → 2HNO3(l)
Iron reacts with oxygen to form one mole iron (III) oxide releasing 826 kJ of heat. How much heat is released when 10.0 g Fe reacts with 5.00 g O2?
Write the formula for the conjugate base for the HC2H3O2 . Express your answer as an ion.
Write the formula for the conjugate base for the HCO3− . Express your answer as an ion.
Calculate the heat in kJ for 9.98 g of ice at -10.0 oC cooled to -75.0 oC with a specific heat capacity of 2.087 J/(g·oC).
10. Use the equation below to calculate the following. a. Balance the reaction. ___ Ca(NO3)2 (aq) + ___ Na3PO4 (aq) → ___ Ca3(PO4)2 (s) + ___ NaNO3 (aq) b. Moles of Na3PO4 needed to react with 1.45 L of 0.225 M Ca(NO3)2 c. Volume of 0.250 M Na3PO4 needed to react with 15.00 mL of 0.500 M…
When sodium carbonate dissolves in water, the carbonate ion, CO32− , acts as a base. Enter a balanced equation for the reaction of the carbonate ion with water. Express your answer as a chemical equation. Identify all of the phases in your answer.
A mixt. weighing 1.000 g consists of equal parts by wt of Na2CO3 and K2CO3. It is dissolved in water and 17.36 m of 1.075 N acid are added. Is the soln. acid or alkaline? What vol. of 1.075 N acid should be added to make the solution neutral?
A wastewater contains 250 mg/L of CgHiO4 and 25 mg/L of NH4*-N. Calculate the COD and TOD (total oxygen demand including organic oxidation and nitrification).
Chemical Reaction Engineering A liquid phase reaction of the form A + 2B -> C, with a rate expression given by -rA = kCACB/Cc^1.9, is carried out in a piston flow reactor (PFR). The feed contains CAo = 0.0036 mol/L, Cso = 0.00756 mol/L, and Cco = 0.0059 mol/L, and k1 = 0.086 mol/L.day.…
Title: Fluid Flow and Pressure Calculation in a Dye Suction Device Question 3: A dye suction device is arranged, as shown in Figure 3. The volumetric flow rate of air through the main pipe at circular cross-section (1) is given as Q = 0.0164 m^3/s and the volumetric flow rate of the dye which…
Calculate the temperature at the junction. k=0.12 Steel: L=15cm k=0.49 Aluminum: L=60cm k=0.26 Brass: L=25cm. The lengths and thermal conductivities of the rods are: 120C. The end of the aluminum rod is at 100C and the ends of the steel and brass rods are at 0C.
3 6 o Number of Students Practical Training 1 Practical Training 2 a) Draw a stacked bar graph showing the number of students doing their first and Table 1. Number of students doing internship in various sectors Sector. Petrochemical Construction and building poo Paper-packaging Paint and ink
Calculate the enthalpy of mixing when 105 mol of poly(methyl methacrylate) with Mn = 105 g/mol and p = 1.2 g/cm³ are dissolved in 150 g of CHCl3 (p = 1.49 g/cm³) at 20 °C. Assume the volumes are additive and x = 0.377.
Paneli slerim Lantilar The following results were obtained for an enzyme-catalyzed reaction in the absence and presence of an inhibitor. Determine the type of inhibition. If Ki for this system is 2.9 mmol.L¹, calculate the inhibitor concentration present. Vmax (mmol.L⁻¹.min⁻¹) KM…
Chemical Reaction Engineering A mixture containing 35% of A, 46% of B, 14% of C, and 5% of an inert substance is fed into a batch reactor, where at a constant temperature of 100°C and constant volume, the elemental reaction A + B -> 3C takes place in the gas phase. In order to ensure the…
Question 1: [24 marks] Air stored in a closed vessel of fixed volume 0.2 m^3 exerts a pressure of 10 bar and 25°C. If the vessel is cooled so that the pressure falls to 3.5 bar, determine (i) the final temperature, [6 marks] (ii) the heat transferred, and [10 marks] (iii) the change in…
Chemical Reaction Engineering After 49 minutes at a temperature of 20°C in a batch reactor, the liquid phase reaction A -> B + C with a known stoichiometry reaches a conversion of 0.710. When the same reaction is carried out at a temperature of 60°C, it reaches a conversion of 0.977 after 16…
If the feed flow rate of substance A to the reactor is 10 mol/min, to reach 80% conversion, considering the required reactor volumes, which of the following reactors should be preferred? a. CSTR (x:0-0.8)* b. PF (x:0-0.8)* c. CSTR (x:0-0.4)*--CSTR(x:0.4-0.8)* d.…
Table and Chart Development (20 pts.) a) Draw a stacked bar graph showing the number of students doing their first and second internships in different sectors according to Table 1. Table 1: Number of students doing internships in various sectors Number of Students Sector Practical…
Chemical Reaction Engineering 1. Decide on the best reactor system for the desired conversion using the xA-1/-rA values given in Table 1. To make a decision, show the areas corresponding to the reactors on the graph you have drawn. Calculate the volumes of the reactors you use. FAo=100 mol/min…
Decide on the best reactor system for the desired conversion using the xA-1/-rA values given in Table 1. To make a decision, show the areas corresponding to the reactors on the graph you have drawn. Calculate the volumes of the reactors you use. FAo=100 mol/min (Fitting a curve in Excel makes…
URGENT!! At P0 atmospheric pressure, the mixture containing %a, A %b, B %c, C and %i inert substances is fed to the batch reactor at 100 degrees Celsius. The gas phase reaction A + B ---> 3C occurs at constant temperature and constant volume. In terms of safety, we should evacuate the reactor…
Given: NA = 6.022x10^23 atoms/mole, Density, dCu = 8940 kg/m^3, M = 63.5 g/mol, h = 6.626x10^-34 J.s, me = 9.1x10^-31 kg) IV Given: N = 6.022x10^23 atoms/mole, Density, dCu = 8940 kg/m^3, M = 63.5 g/mol, h = 6.626x10^-34 J.s, me = 9.1x10^-31 kg) (a) Calculate the number of valence electrons…
Determine the enthalpy of complete combustion of propane at 25°C and 1 atm using the enthalpy of formation tables.
The following is the binodal diagram for benzene-n-hexane-ChClâ‚‚ ternary. The distribution coefficient of n-hexane for the tie line passing through point M is about 2.4.
Dodecane is burned with 180% of the theoretical air in a complete combustion process.
URGENT!! A->B+ C liquid phase reaction, which is known to be elementary, undergoes x1 transformation after t1 minutes at T1 temperature (Celsius degree) in a batch reactor. When the same reaction takes place at T2 temperature (Celsius degree), it undergoes x2 transformation after t2 minutes. If…
Draw a block flow diagram showing the ethylene oxide production process according to the following information: Air is compressed and then mixed with the ethylene feed. The mixed feed is superheated in a heat exchanger and is then sent to the reactor in which ethylene oxide is formed. The…
An ideal mixing (total volume inlet = total volume outlet) of two incompressible fluids, which is between water and methanol (SG = 0.85), is coming from two inlets. At inlet 1, water enters at 9 m/s and at inlet 2, methanol enters at 7 m/s. The diameter of inlet 1 and 2 is 4 cm and 3 cm. If the…
Oil, SG 0.8, flows inside a cubical reservoir with a velocity of 1.603 m/min at section 1. At the same time, the oil exits at section 2 with a velocity of 60 cm/s. The oil inside the reservoir is actually increasing its level, h, at a rate of 20 mm/s. The reservoir dimensions are 1m x 1m x…
For a brass alloy, the stress at which plastic deformation begins is 345 MPa. (a) What is the maximum load that may be applied to a specimen with an original crosssectional area of 130 mm without plastic deformation? (b) What is the engineering stress at the maximum load without plastic…
Q 3-) Br2(g) → 2 Br(g) (1 mol Br dissociates according to the above reaction). The total pressure of the reaction at 1400°C is 0.047 atm. The partial pressure of Br2 at equilibrium is 0.037 atm. a) Calculate the dissociation degree of this reaction. b) Calculate Kp and K at 1400°C for this…
Q 2-) The vapor pressures of pure acetone at 10°C and 50°C are 0.152 atm and 0.806 atm, respectively. a) Calculate the normal boiling point temperature of acetone from the given information. b) Calculate the molal boiling point constant (ebulioscopy constant) of acetone. c) How many grams of…
5 mol acetone (CH3COCH3) at 35°C is 0.75 atm. The vapor pressures of pure carbon, sulfur, and acetone at 35°C are 0.674 atm and 0.453 atm, respectively. a) What is the vapor pressure of the solution if the solution is ideal? b) Does the vapor pressure of the solution deviate from Raoult's…
4. Draw and define what grains and grain boundaries are. How are they created?
If a column design results in a column with too large a diameter, which of the following is/are possible remedies? Explain: decrease the reflux ratio, increase the pressure, and/or decrease the tray spacing.
What type of crystal unit lattice does this diffraction pattern result from? PCPDFWIN-[PDF#040850Wavelength=1.5405 A] PDFNumber Search PrintewData ConversionWindowClearHelp x Ref: Swanson.Tatge.Natl.Bur.Stand[U.S.LCirc.539.I.131953 Input = CuKa 3.6 1.8 1.3 1.0 0.9 0.8 d(A) d[A] Int- hk1|d[A)…
Find the Miller indices corresponding to the Bragg reflections Based on the JCPDS file provided to you, answer the following: PCPDFWIN - [PDF#040850, Wavelength = 1.5405 Ã…, PDFNumber Search Print ew Data Conversion Window Clear Help x -16x Ref: Swanson, Tatge. Nal. Bu. Stand. U.S. LCirc.…
Find the Bragg angles corresponding to the position of the diffraction lines. Based on the JCPDS file provided to you, answer the following: PCPDFWIN-[PDF#040850, Wavelength=1.5405A] x Ref: Swanson, Tatge, Nall, Bu, Stand [U.S. LCirc.539.I.131953] Input = Cu Ka pax 1 3.6 1.8 1.3 1.0 0.9 0.8…
A composite wall is to be constructed for a furnace. There's a window and two stainless steel bolts in the particular area that we are interested in. The temperature outside the furnace (T2) is always 30°C due to the hot processing environment. The dimensions and characteristics of the wall…
Use the graphs below to answer the following questions: What is the effect of yarn wind-up (take-up) speed on the mechanical properties of Nylon 6 fibers? How does the microstructure of Nylon 6 yarns change with wind-up speed? 12.0 -500 m/min As-spun 500 m/min DR=2.0 500 m/min DR=3.0 10.0 -500…
Text: Urgent please solve this question with numbers, not explanation. CO and CH are the two main gases causing global warming through the greenhouse gas effect. They are also the main components of biogas (roughly 35-50% CO and 50-65% CH), natural gas (roughly 70-95% CH), and flue gas mainly…
10C water flows from a large reservoir at 1.5x10^-2 m/s through the system shown below. The water leaves the tank through an inward projecting pipe (K=0.78). Please fill in the Answer Table. 7.5 m 4-inch type K copper tube 12 m All elbows are standard Flow B 70 m
You have a tank filled with gas. The tank has a nozzle that will let the gas flow to the outside of the tank. The details are below: Please fill in the Answer Tables: Gas: Nitrogen Nozzle: 1 Schedule: 80 Tank Pressure (kPag): 349 Tank Temperature (°C): 42
The molar mass of ketone is 888 grams per cubic meter. Click the icon to view the conversion table. Click the icon to view the table of common derived units in the System.
The answer is 0.11 day-1. The first-order decay coefficient, k, at 100°C is 0.1 day-1. What is the coefficient at a temperature of 150°C if theta is 1.02?
Question 4 10 pts Tempering internal stresses caused by quenching none of the above reduces increases does not affect
If there are not enough capillaries within a tissue, there may be regions of tissue in which the oxygen concentration vanishes. If such a region, called the anoxic region, persists for prolonged periods of time, the cells would die, and the tissue would be considered necrotic. Using the below…
What measure of stability is needed if a sludge from a wastewater treatment plant is to be a) placed on the White House Lawn [0.5 pts], b) dumped into a trout stream [0.5 pts], c) sprayed on a playground [0.5 pts], d) sprayed on a vegetable garden [0.5 pts], e) if you are hired as a consultant…
A clarifier is a pollution control technology device in a wastewater treatment plant. Looking back in Chapter 5 (textbook, answer question 5.7, page 220 reproduced here for your convenience): Describe the condition(s) of the primary clarifier one day after the pump for the raw sludge broke…
- Identify and describe briefly three common law theories that must be applied to fight against the citing of used automobile tires. [3pts] - If you were to be hired by SLU as an expert witness, how would you counsel SLU in this scenario-case i.e against building the incinerator plant? [2pts]
An air pollution control technology device is receiving a waste gas stream of 40 m3/minute that contains 2000 ug/m3 of Particulate Matter (PM) or aerosols. The emission from the control device has a PM concentration of 80 g/m3. Use the steps shown below to calculate the removal efficiency,…
Estimate the particulate removal efficiency for a cyclone as a pollution control technology to remove particulates of the size shown below: a) 100 microns b) 10 microns c) 1 mm d) 0.1 mm e) Draw a Y-axis-Removal Efficiency vs X-axis-Particle Diameter Curve f) What conclusions must be drawn from…
Fact 1: A stack emission (a plume) has 90% SO2 and 10% N2, and no particulate matter (PM). [1] What pollution control technology must be suggested/recommended? [1 pt] [2] Justify the answer in 1 above, i.e. Why do you suggest/recommend the technology? [1 pt]
Given the continuous cooling transformation diagram, fill in the blanks. Temperature (°C) 800 700 600 500 400 300 200 100 0 10-1 1 2 3 1: Austenite 10 1: M(start); 2: M(50%); 3: M(90%) O 1: M(start); 2: M(90%); 3: M(50%) 1: M(90%); 2: M(50%); 3: M(start) O 1: M(50%); 2: M(start); 3:…
Given the continuous cooling transformation diagram, fill in the blanks. 800 1400 Eutectoid temperature 700 dne 1200 600 Continuous cooling transformation 1000 800 Temperature (°F) 600 500 400 200 400 100 200 Cooling curve 0 10^-1 1 10^2 10^3 Time (s) 10^4 10^5 1: M (start) 2: M 90% 3: M…
The temperature of your coffee is 50°C at t=0. How long will it take for the temperature to reach 35°C if the rate of heat loss from the surface is constant at 2500 W/m^2? Assume the cup has a diameter of 10 cm and a height of 20 cm. The area of the cup is Ï€ * radius^2. Assume the bottom and…
Given the diagram for martensite formation, fill in the blanks: a(BCC) + FeC quench tempering O(FCC) O M(BCT) Oa none of the above
Question 9 10 pts For the eutectoid transformation to occur in the Fe-FeC system, it must be cooled below 727°C. Question 10 10 pts The recrystallization rate increases with temperature.
Homogeneous nucleation requires: - Considerable supercooling (typically 80-100°C) - Considerable supercooling (typically 80-300°C) - Only very slight supercooling (0.1-10°C) - Considerable supercooling (typically 0-300°C)
ANS. 14.9 ft SHOW THE SOLUTION COPIED ANSWER=REPORT Problems 8 and 9 are based on the following information: It is required to dry natural gas containing 80 lbs of water per 10 ft by passing it through a bed of activated alumina gel in two adsorption towers. Data: Natural gas to be dried = 1 x…
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