Thermodynamics and Statistical Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 37 - 42 of 82

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Question 37

Thermodynamics and Statistical Physics

Appeared in Year: 2011

Question

MCQ▾

The degeneracy of an excited state of nitrogen atom having electronic configuration is –

Choices

Choice (4)Response

a.

15

b.

6

c.

150

d.

10

Question 38

Thermodynamics and Statistical Physics

Appeared in Year: 2010

Question

MCQ▾

A system of non – interacting classical point particle is constrained to move on the two – dimensional surface of a sphere. The internal energy of the system is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 39

Thermodynamics and Statistical Physics

Appeared in Year: 2010

Question

MCQ▾

Which among the following sets of Maxwell relations is correct? (U – internal energy, H – enthalpy, A – Helmholtz free energy and G – Gibbs free energy)

Choices

Choice (4)Response

a.

b.

c.

d.

Passage

The partition function for a gas of photons is given by

Question 40 (1 of 2 Based on Passage)

Thermodynamics and Statistical Physics

Appeared in Year: 2010

Question

MCQ▾

The pressure of the photon gas is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 41 (2 of 2 Based on Passage)

Thermodynamics and Statistical Physics

Appeared in Year: 2010

Question

MCQ▾

The specific heat of the photon gas varies with temperature as,

Choices

Choice (4)Response

a.

Plot of Specific Heat V/S Temperature: Choice A

b.

Plot of Specific Heat V/S Temperature: Choice B

c.

Plot of Specific Heat V/S Temperature: Choice C

d.

Plot of Specific Heat V/S Temperature: Choice D

Question 42

Thermodynamics and Statistical Physics

Appeared in Year: 2010

Question

MCQ▾

A particle is placed in a region with the potential where . Then,

Choices

Choice (4)Response

a.

There are no points of stable or unstable equilibrium.

b.

and are points of unstable equilibrium.

c.

is a point of stable equilibrium and is a point of unstable equilibrium.

d.

and are points of stable equilibrium.

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