THERMODYNAMIC objective questions given below:

SECTION-1

##### Q11. Which of the following statement is correct?

(a) The increase in entropy is obtained from a given quantity of heat at a low temperature
(b) The change in entropy may be regarded as a measure of the rate of the availability of unavailability of heat for transformation into work.
(c) The entropy represents the maximum amount of work obtainable per degree drop in temperature.
(d) all of the above

Ans (d) all of the above

(a) T
(b) √T
(c) 1/T
(d) 1/√T

Ans (a) T

##### Q13. The kinetic energy per kg molecule of any gas at absolute temperature T is equal to

(a) Ru x T
(b) 1.5 R x T
(c) 2Ru x T
(d) 3 Ru x T

Ans (b) 1.5 R x T

##### Q14. According to kinetic theory of gases, the velocity of molecules…………with the increase in temperature.

(a) remains constant
(b) increases
(c) decreases
(d) none of these

Ans (b) increases

(a) √kT/m
(b) √2kT/m
(c) √3kT/m
(d)  √5kT/m

Ans (c) √3kT/m

(a) √kT/m
(b) √2kT/m
(c) √3kT/m
(d)  √5kT/m

Ans (b) √2kT/m

(a) 0.086
(b) 1.086
(c) 3.086
(d) 4.086

Ans (b) 1.086

##### Q18. The pressure exerted by an ideal gas is ……….of the kinetic energy of all the molecules contained in a unit volume of gas.

(a) one-half
(b) one-third
(c) two-third
(d) three-fourth

Ans (c) two-third

##### Q19. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as

(a) law of equipartition of energy
(b) law of conservation of energy
(c) law of degradation of energy
(d) none of these

Ans (a) law of equipartition of energy

##### Q20. The ratio of molar specific heats for monoatomic gas is

(a) 1
(b) 1.4
(c) 1.67
(d) 1.87

Ans (c) 1.67

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##### Read More Sections of Thermodynamic Objective Questions

Each section contains maximum 80 Questions. To practice more questions visit other sections.

Thermodynamics Objective Questions – Section-1

Thermodynamics Objective Questions – Section-2

Thermodynamics Objective Questions – Section-3

Thermodynamics Objective Questions – Section-4

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