Thermodynamic and Statistical Physics-Maxwell Relations (CSIR Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Thermodynamic and Statistical Physics » Maxwell Relations

Appeared in Year: 2011

MCQ▾

Question

A system of N non – interacting spin 12 particles is placed in external magnetic field H. The behaviour of the entropy of the system as a function of energy is given by – (December)

Choices

Choice (4) Response

a.

Entropy as a function of Energy: Choice A

Entropy as a Function of Energy: Choice A

In figure the behaviour of the entropy of the system as function of energy is given.

b.

Entropy as a function of Energy: Choice B

Entropy as a Function of Energy: Choice B

In figure the behaviour of the entropy of the system as function of energy is given.

c.

Entropy as a function of Energy: Choice C

Entropy as a Function of Energy: Choice C

In figure the behaviour of the entropy of the system as function of energy is given.

d.

 Entropy as a function of Energy: Choice D

Entropy as a Function of Energy: Choice D

In figure the behaviour of the entropy of the system as function of energy is given.

Question number: 2

» Thermodynamic and Statistical Physics » Maxwell Relations

Appeared in Year: 2012

MCQ▾

Question

The energy required to create a lattice vacancy in a crystal is equal to 1eV . The ratio of the number densities of vacancies n1200Kn300K , when crystal is equilibrium at 1200 K and 300 K, respectively, is approximately, (June)

Choices

Choice (4) Response

a.

exp(15)

b.

exp(30)

c.

exp(15)

d.

exp(30)

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