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 : 8
Pick out the wrong statement.

Trouton's ratio of non-polar liquids is calculated using Kistyakowsky equation
Thermal efficiency of a Carnot engine is always less than 1
An equation relating pressure, volume and temperature of a gas is called ideal gas equation
None of these

Question No : 9
Which of the following will increase the volume of a real gas by four times?

Doubling the absolute temperature as well as pressure of the gas
Reducing pressure to one fourth at constant temperature
Reducing temperature to one fourth at constant pressure
Reducing the temperature to half and doubling the pressure

Question No : 10
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Always greater than one
Same at the same reduced temperature
Same at the same reduced pressure
Both (B) & (C)

Question No : 11
Claude's liquefaction process employs the cooling of gases by

Expansion in an engine
Following a constant pressure cycle
None of these

Question No : 12
The most important application of distribution law is in

Liquid extraction

Question No : 13
When a gas in a vessel expands, its internal energy decreases. The process involved is


Question No : 14
The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for

Expansion of a real gas
Reversible isothermal volume change
Heating of an ideal gas
Cooling of a real gas