# Thermodynamic and Statistical Physics-Free Energy (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 4 of 9

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## Question number: 1

» Thermodynamic and Statistical Physics » Free Energy

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Appeared in Year: 2013

MCQ▾

### Question

Consider the melting transition of ice into water at constant pressure. Which of the following thermodynamic quantities does not exhibit a discontinuous change across the phase transition? (December)

### Choices

Choice (4)Response

a.

Internal energy

b.

Helmholtz free energy

c.

Entropy

d.

Gibbs free energy

## Question number: 2

» Thermodynamic and Statistical Physics » Free Energy

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Appeared in Year: 2014

MCQ▾

### Question

The free energy F of a system depends on a thermodynamic variable as with . The value of , when the system is in thermodynamic equilibrium, is – (June)

### Choices

Choice (4)Response

a.

b.

Zero

c.

d.

## Question number: 3

» Thermodynamic and Statistical Physics » Free Energy

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Appeared in Year: 2013

MCQ▾

### Question

Two different thermodynamic system are described by the following equations of state –

Where and are respectively the temperatures, the mole numbers and the internal energies of the two systems, and R is the gas constant. Let denote the total energy when these two systems are put in contact and attain thermal equilibrium. The ratio is – (December)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 4

» Thermodynamic and Statistical Physics » Free Energy

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Appeared in Year: 2012

MCQ▾

### Question

The free energy of gas of N particles in a volume V and at a temperature T is where is a constant and denotes the Boltzmann constant. The internal energy of the gas is – (June)

### Choices

Choice (4)Response

a.

b.

c.

d.

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