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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 : 43
The unit of equilibrium constant of a chemical reaction is the same as that of

Molar concentration
Temperature
Internal energy
None of these
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Question No : 44
__________ does not change during phase transformation processes like sublimation, melting & vaporisation.

Entropy
Gibbs free energy
Internal energy
All (A), (B) & (C)
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Question No : 45
1st law of thermodynamics is nothing but the law of conservation of

Momentum
Mass
Energy
None of these
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Question No : 46
A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

Zero
Positive
Negative
None of these
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Question No : 47
For an exothermic reaction

Only enthalpy change (ΔH) is negative
Only internal energy change (ΔE) is negative
Both ΔH and ΔE are negative
Enthalpy change is zero
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Question No : 48
An ideal liquid refrigerant should

Not have a sub-atmospheric vapour pressure at the temperature in the refrigerator coils
Not have unduly high vapour pressure at the condenser temperature
Both (A) and (B)
Have low specific heat
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Question No : 49
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.

Boyle
Inversion
Critical
Reduced
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Wanna test your skill? Here are some exams we prepared for you. So if you need to test your skill just attempt any exam from bellow.

Exam Name No. Of Q Link
Chemistry set 1 30 Start
Chemistry set 2 30 Start
Chemistry set 3 30 Start
Chemistry set 4 30 Start
Chemistry set 5 30 Start
Chemistry set 6 30 Start
Chemistry set 7 30 Start
Chemistry set 8 30 Start
Chemistry set 9 30 Start
Chemistry set 10 30 Start
Chemistry set 11 30 Start
Chemistry set 12 30 Start