Chemical Engineering Thermodynamics Objective Questions & Answers Pdf - 2

Question: 6

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called _____ temperature.

(A) reduced

(B) critical

(C) inversion

(D) boyle

Question: 7

Equilibrium constant decreases as the temperature

(A) increases, for an endothermic reaction

(B) decreases, for an exothermic reaction

(C) increases, for an exothermic reaction

(D) none of these

Question: 8

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except

(A) N₂

(B) O₂

(C) H₂

(D) CO₂

Question: 9

The change in Gibbs free energy for vaporisation of a pure substance is

(A) zero

(B) positive

(C) negative

(D) may be positive or negative

Question: 10

Which of the following is an extensive property of a system?

(A) concentration

(B) pressure

(C) molal heat capacity

(D) heat capacity