MEEN 2374 Thermo quiz 7 | Questions and Answers | 2026 Update | Graded A+.

Chapter 07 Quiz


Final Grade



SUBMITTED 5/4/26, 10:36 AM

RECEIPT: 18501166921B4BADBC649DEE392F1A80




1 MULTIPLE CHOICE CORRECT


For ideal gas, the equation P1/P2=Pr1/Pr2, where Pr is relative pressure, represents




A Correct: an isentropic process with variable specific heats. Correct answer



B an isentropic process with constant specific heats.


C an isothermal process.


D an adiabatic process.




2 MULTIPLE CHOICE CORRECT


The unit of entropy cannot be




A Btu/R


B Correct: Btu/s Correct answer



C kJ/R


D kJ/K

, 3 MULTIPLE CHOICE CORRECT

For an adiabatic compressor, its isentropic efficiency can be given by




A (h1-h2a)/(h1-h2s).
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B (h1-h2a)/ Δ ke.


C ws/wa.
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D Correct: (h2s-h1)/(h2a-h1).
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Correct answer




4 MULTIPLE CHOICE CORRECT


Regarding so for ideal gases,




A it is always a constant.


B it is independent of gas types.


C it is only a function of pressure.


D Correct: it increases with temperature. Correct answer




5 MULTIPLE CHOICE CORRECT


Regarding the relative pressure (Pr), which of the following is correct?




A it is an extensive property of a system.


B It is related to the critical pressure of a substance.