Chemical Engineering Thermodynamics Quiz Questions and Answers Pdf - 1

Question: 1

The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by

(A) increase in enthalpy corresponding to absorption of heat

(B) decrease in enthalpy corresponding to evolution of heat

(C) decrease of entropy

(D) decrease of entropy

Question: 2

When a gas is subjected to adiabatic expansion, it gets cooled due to

(A) decrease in temperature

(B) decrease in velocity

(C) energy spent in doing work

(D) decrease in kinetic energy

Question: 3

During a change of state, the change in which of the following state variable is equal to zero?

(A) specific enthalpy

(B) molar Gibbs free energy

(C) specific internal energy

(D) specific entropy

Question: 4

Gibbs phase rule finds application, when heat transfer occurs by

(A) condensation

(B) radiation

(C) conduction

(D) convection

Question: 5

A system in which there is exchange of energy but not of mass, is called a/an _____ system.

(A) open

(B) closed

(C) isolated

(D) insulated