Chemical Engineering Thermodynamics MCQs | Page - 1

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Q. _________ law of thermodynamics ascertains the direction of a particular spontaneous process.

(A) Zeroth
(B) First
(C) Second
(D) Third
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Q. (∂E/∂T)V is the mathematical expression for

(A) CV
(B) Enthalpy change
(C) Free energy change
(D) None of these
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Q. (∂H/∂T)P is the mathematical expression for

(A) CV
(B) Entropy change
(C) Gibbs free energy
(D) None of these
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Q. _______ increases with increase in pressure.

(A) The melting point of wax
(B) The boiling point of a liquid
(C) Both (A) and (B)
(D) Neither (A) nor (B)
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Q. ________ functions are exemplified by heat and work.

(A) Path
(B) Point
(C) State
(D) None of these
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Q. ________ 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
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Q. ________ Equation predicts the activity co-efficient from experimental data.

(A) Lewis-Randall
(B) Margules
(C) Van Laar
(D) Both (B) & (C)
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Q. _________ does not change during phase transformation processes like sublimation, melting & vaporisation

(A) Entropy
(B) Gibbs free energy
(C) Internal energy
(D) All (A), (B) & (C)
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Q. _______ decreases during adiabatic throttling of a perfect gas.

(A) Entropy
(B) Temperature
(C) Enthalpy
(D) Pressure
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Q. ________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.

(A) Bucket
(B) Throttling
(C) Separating
(D) A combination of separating & throttling
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