Ace - AI Tutor
Ask Our Educators
Textbooks
My Library
Flashcards
Scribe - AI Notes
Notes & Exams
Download App
Nokubongwa

Nokubongwa

Divider

Viewed Questions

What is the common characteristic of all architectural styles that are geared to supporting software fault tolerance?

Software Engineering

Suggest circumstances where it is appropriate to use a fault-tolerant architecture when implementing a software-based control system and explain why this approach is required.

Software Engineering

Questions asked

AWAITING AN EDUCATOR

Consider a sample of water vapour, which expands reversibly and adiabatically from 97.3 Torr and 400 cm3 to a final volume of 5.0 dm3 . Take Ξ³ = 1.3. Calculate the final pressure of the sample. Equation 2E.3 applies to this question.

View Answer
 divider
INSTANT ANSWER

5. Consider the following data and calculate the standard reaction enthalpy for \[ \begin{array}{cc} \mathrm{CaC}_{2}(s)+2 \mathrm{H}_{2} \mathrm{O}(\ell) \rightarrow \mathrm{Ca}(\mathrm{OH})_{2}(a q)+\mathrm{C}_{2} \mathrm{H}_{2}(g) & \\ \mathrm{Ca}(\mathrm{s})+2 \mathrm{C}(\text { graphite }) \rightarrow \mathrm{CaC}_{2}(\mathrm{~s}) & \Delta_{f} \mathrm{H}^{\ominus}=-62.8 \mathrm{~kJ} / \mathrm{mol} \\ \mathrm{Ca}(\mathrm{s})+\frac{1}{2} \mathrm{O}_{2}(g) \rightarrow \mathrm{CaO}(\mathrm{s}) & \Delta_{c} \mathrm{H}^{\ominus}=-635.5 \mathrm{~kJ} / \mathrm{mol} \\ \mathrm{CaO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}(\ell) \rightarrow \mathrm{Ca}(\mathrm{OH})_{2}(a q) & \Delta_{\text {sol }} \mathrm{H}^{\ominus}=-653.1 \mathrm{~kJ} / \mathrm{mol} \\ \mathrm{C}_{2} \mathrm{H}_{2}(g)+\frac{5}{2} \mathrm{O}_{2}(g) \rightarrow 2 \mathrm{CO}_{2}(g)+\mathrm{H}_{2} \mathrm{O}(\ell) & \Delta_{c} \mathrm{H}^{\ominus}=-1300 \mathrm{~kJ} / \mathrm{mol} \\ \mathrm{C}(\text { graphite })+\mathrm{O}_{2}(g) \rightarrow \mathrm{CO}_{2}(g) & \Delta_{r} H^{\ominus}=-393.5 \mathrm{~kJ} / \mathrm{mol} \end{array} \] [10]

View Answer
 divider
ANSWERED

David Collins verified

Numerade educator

Consider the following data and calculate the standard reaction enthalpy for πΆπ‘Ž(𝑠) + 2 𝐢(π‘”π‘Ÿπ‘Žπ‘β„Žπ‘–π‘‘π‘’) β†’ πΆπ‘ŽπΆ2(𝑠) βˆ†π‘“π»β¦΅ = βˆ’62.8 π‘˜π½/π‘šπ‘œπ‘™ πΆπ‘Ž(𝑠) +1/2𝑂2(𝑔) β†’ πΆπ‘Žπ‘‚(𝑠) βˆ†π‘π»β¦΅ = βˆ’635.5 π‘˜π½/π‘šπ‘œπ‘™ πΆπ‘Žπ‘‚(𝑠) + 𝐻2𝑂(β„“) β†’ πΆπ‘Ž(𝑂𝐻)2(π‘Žπ‘ž) βˆ†π‘ π‘œπ‘™π»β¦΅ = βˆ’653.1 π‘˜π½/π‘šπ‘œπ‘™ 𝐢2𝐻2(𝑔) +5/2𝑂2(𝑔) β†’ 2𝐢𝑂2(𝑔) + 𝐻2𝑂(β„“) βˆ†π‘π»β¦΅ = βˆ’1300 π‘˜π½ π‘šπ‘œπ‘™ 𝐢(π‘”π‘Ÿπ‘Žπ‘β„Žπ‘–π‘‘π‘’) + 𝑂2(𝑔) β†’ 𝐢𝑂2(𝑔) βˆ†π‘Ÿπ»β¦΅ = βˆ’393.5 π‘˜π½/π‘šπ‘œπ‘™

View Answer
 divider
ANSWERED

David Collins verified

Numerade educator

Calculate the difference between the molar enthalpy and internal energy changes in the synthesis of ammonia at 298 K

View Answer
 divider