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Chemical Engineering Thermodynamics MCQ Question with Answer

Chemical Engineering Thermodynamics MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 36
Heat pump

Accomplishes only space heating in winter
Accomplishes only space cooling in summer
Accomplishes both (A) and (B)
Works on Carnot cycle

Question No : 37
The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by

T1/(T1-T2)
T2/(T1-T2)
T1/T2
T2/R1

Question No : 38
Free energy

Decreases in all spontaneous (or irreversible) processes
Change during a spontaneous process has a negative value
Remains unchanged in reversible processes carried at constant temperature and pressure
All (A), (B) and (C)

Question No : 39
Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is

1
2
3
4

Question No : 40
Which of the following behaves most closely like an ideal gas?

He
N2
O2
H2

Question No : 41
After throttling, gas temperature

Decreases
Increases
Remain same
May increase or decrease; depends on the nature of the gas

Question No : 42
__________ Equation predicts the activity coefficient from experimental data.

Lewis-Randall
Margules
Van Laar
Both (B) & (C)

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