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How do marine viruses indirectly affect marine food webs? They enhance zooplankton diversity. They increase oxygen production. They break down organic matter into dissolved nutrients. They provide carbon for corals. They prevent harmful algal blooms.

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20) A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg? A) 507 mmHg B) 760 mmHg C) 1140 mmHg D) 3800 mmHg E) 150 mmHg

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The present value of a bond or other debt instrument is

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In general, the citric acid cycle is when the cell has enough energy

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Example 7-ADD-2: Consider the steam plant analysed in Example 7-3(B). Re-calculate its efficiency assuming that the isentropic efficiency of the turbine is 80%. • Please answer the above question. The 7-3(B) example is attached below. Thank you Example 7-3(B) : A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of (20)/(b)ar , with the maximum cycle temperature of 300deg C and the flow rate of steam of 7200kg per hour. Calculate the thermal efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle. You may use the following information: eta =(W_(NET))/(Q_(S)) W^(˙)=m^(˙)h_(2)-m^(˙)h_(1) ,h=h_(f)+x(h_(g)-h_(f)) properties of water and wet steam able[[p,h_(f),h_(g),s_(f),s_(g) Example 7-3(B): A steam plant, shown diagrammatically in Figure 7-20, operates between a condenser pressure of 0.2 bar and boiler pressure of 20 bar, with the maximum cycle efficiency of the plant, assuming that the plant can be approximated by the Rankine cycle. You may use the following information: n= WNET. Qs W=mh-mh h=h+xh-h properties of water and wet steam p hi hg [bar] [kJ kg] [kJ kg-1] 0.2 251.4 2609 20 908.6 2798 properties of water p S h [bar] [kJ kg1K-1] [kJ kg1] 20 0.832 253.4 properties of superheated steam p t h [bar] [C] [kJ kg1] 20 300 3024 Sf Sg [kJkg1K-1] 0.832 2.447 [kJkg-1K-1] 7.907 6.339 S [kJ kg-1K1] 6.769 Solution: The corresponding Rankine cycle is shown below: T 08 Tme Pe T6 TA Pc Tc po S 7-17

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Reduce the expression (i) f = ((A.B)' + A '+ A.B)'

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How are the preceding problems alike? After performing the subtraction, we need to reduce the resulting fraction. We need only perform the subtraction because the fractions already have identical denominators. We first need to find a common denominator before performing the subtraction. We need to convert the fractions into decimals prior to subtraction in order to obtain exact values.

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Find the limit. (If an answer does not exist, enter DNE.) \\ $\lim_{x \to 0} \frac{\sin 9x}{x}$

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QUESTION 6 Learned ______ is an acquired expectation that events in one's life are uncontrollable and that one cannot escape from the situation.

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Franck-Condon principle The Franck-Condon principle is a rule in spectroscopy that explains the intensity of vibronic transitions. Vibronic transitions are the simultaneous changes in electronic and vibrational energy levels of a molecule due to absorption or emission of a photon of appropriate energy. Electronic transitions are essentially instantaneous, so there is no time for appreciable motion of the nuclei. So the transitions appear as vertical lines with no change in internuclear distance. This is referred to as Franck-Condon principle. The spectra are strongly affected by the probability that an electron is at a location to contribute to such a "vertical" transition. That probability is the wave function squared, and at least the lowest vibrational states are approximated by the quantum harmonic oscillator.

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