Hello students welcome to msbte news in this article we have provided 22406 Chemical Engineering Thermodynamics Mcq Questions and Answer. This Chemical Engineering Thermodynamics Multiple Choice Questions is ideal for Students who are in Second Year of Diploma in Chemical Engineering courses. By referring Chemical Engineering Thermodynamics Mcq Pdf for Diploma you will get to know about the paper pattern of Msbte Mcq Winter 2021 exams.

with this Mcq of Chemical Engineering Thermodynamics 2nd year students can practice for their upcoming Winter 2021 exams. In this Chemical Engineering Thermodynamics Objective Questions we have selected 30 important questions from previous year papers. you can also download Chemical Engineering Thermodynamics Pdf below we have given a download link.

Chemical Engineering Thermodynamics Mcq Questions and Answer

1. A refrigerator works on the principle of __________ law of thermodynamics.
(A) Zeroth
(B) First
(C) Second
(D) Third

Correct!

Wrong!

2. Gibbs free energy (F) is defined as
(A) F = E – TS
(B) F = H – TS
(C) F = H + TS
(D) F = E + TS

Correct!

Wrong!


  1. Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, 


(A) is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation?
(A) [∂(G/T)/∂T] = – (H/T2)
(B) [∂(A/T)/∂T]V = – E/T2
(C) Both (A) and (B)
(D) Neither (A) nor (B)

Correct!

Wrong!

4. There is a change in __________ during the phase transition.
(A) Volume
(B) Pressure
(C) Temperature
(D) All a, b & c

Correct!

Wrong!

5. In Joule-Thomson porous plug experiment, the
(A) Enthalpy does not remain constant
(B) Entire apparatus is exposed to surroundings
(C) Temperature remains constant
(D) None of these

Correct!

Wrong!

6. Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O ⇌ CO2 + H2, by
(A) Low temperature and high pressure
(B) Low temperature and low pressure
(C) High temperature and high pressure
(D) High temperature and low pressure

Correct!

Wrong!

7. A gas mixture of three components is brought in contact with a dispersion of an organic phase in water. The degree of freedom of the system is
(A) 3
(B) 4
(C) 5
(D) 6

Correct!

Wrong!


  1. If two gases have same reduced temperature and reduced pressure, then they will have the same 

(A) Volume
(B) Mass
(C) Critical temperature
(D) None of these

Correct!

Wrong!

9. A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is
(A) 349
(B) 651
(C) 667
(D) 1000

Correct!

Wrong!

10. “The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is
(A) The statement as per Gibbs-Helmholtz
(B) Called Lewis-Randall rule
(C) Henry’s law
(D) None of these

Correct!

Wrong!

11. Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is
(A) 0
(B) 1
(C) ∞
(D) None of these

Correct!

Wrong!

12. The internal energy of an ideal gas is a function of its __________ only.
(A) Molecular size
(B) Volume
(C) Pressure
D) Temperature

Correct!

Wrong!

13. One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is
(A) 30554
(B) 10373
(C) 4988.4
(D) 4364.9

Correct!

Wrong!

14. Third law of thermodynamics is helpful in
(A) Prediction of the extent of a chemical reaction
(B) Calculating absolute entropies of substances at different temperature
(C) Evaluating entropy changes of chemical reaction
(D) Both (B) and (C)

Correct!

Wrong!

15. Trouton’s ratio of __________ liquids is calculated using the Kistiakowsky equation.
(A) Polar
(B) Non-polar
(C) Both (A) & (B)
(D) Neither (A) nor (B)

Correct!

Wrong!

16. Entropy change for an irreversible process taking system and surrounding together is
(A) 0
(B) > 0
(C) < 0
(D) None of these

Correct!

Wrong!

17. The shape of T-S diagram for Carnot Cycle is a
(A) Rectangle
(B) Rhombus
(C) Trapezoid
(D) Circle

Correct!

Wrong!

18. __________ explains the equilibrium constant for any chemical reaction.
(A) Henry’s law
(B) Law of mass action
(C) Hess’s law
(D) None of these

Correct!

Wrong!

19. Claude’s liquefaction process employs the cooling of gases by
(A) Expansion in an engine
(B) Following a constant pressure cycle
(C) Throttling
(D) None of these

Correct!

Wrong!

20. “When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change.” This is called the
(A) Le-Chatelier’s principle
(B) Kopp’s rule
(C) Law of corresponding state
(D) Arrhenius hypothesis

Correct!

Wrong!

21. “The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances”. This is the
(A) Lewis-Randall rule
(B) Statement of Van’t Hoff Equation
(C) Le-Chatelier’s principle
(D) None of these

Correct!

Wrong!

22. The adiabatic throttling process of a perfect gas is one of constant enthalpy
(A) In which there is a temperature drop
(B) Which is exemplified by a non-steady flow expansion
(C) Which can be performed in a pipe with a constriction
(D) In which there is an increase in temperature

Correct!

Wrong!

23. A Carnot cycle consists of the following steps:
(A) Two isothermal and two isentropic
(B) Two isobaric and two isothermal
(C) Two isochoric and two isobaric
(D) Two isothermals and two isochoric

Correct!

Wrong!


  1. An isolated system can exchange __________ with its surroundings.

(A) Matter
(B) Energy
(C) Neither matter nor energy
(D) Both matter and energy

Correct!

Wrong!

25. A solid is transformed into vapour without going to the liquid phase at
(A) Triple point
(B) Boiling point
(C) Below triple point
(D) Always

Correct!

Wrong!

26. The compressibility factor for an ideal gas is 1. Its value for any other real gas is
(A) 1
(B) < 1
(C) > 1
(D) Either (B) or (C), depends on the nature of the gas

Correct!

Wrong!

27. When a gas is subjected to adiabatic expansion, it gets cooled due to
(A) Decrease in velocity
(B) Decrease in temperature
(C) Decrease in kinetic energy
(D) Energy spent in doing work

Correct!

Wrong!

28. Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is – 57°C and 5.2 atm).
(A) Pressure must be kept below 5.2 atm
(B) Temperature must be kept above – 57°C
(C) Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C
(D) Pressure and temperature must be kept below 5.2 atm. and – 57°C respectively

Correct!

Wrong!

29. Work done in case of free expansion is
(A) Indeterminate
(B) Zero
(C) Negative
(D) None of these

Correct!

Wrong!


  1. The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition. 

(A) Internal energy
(B) Enthalpy
(C) Gibbs free energy
(D) Helmholtz free energy

Correct!

Wrong!

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22406 Chemical Engineering Thermodynamics Mcq Pdf

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