Thermodynamics and Statistical Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 73 - 76 of 82

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Question 73

Thermodynamics and Statistical Physics

Appeared in Year: 2006

Question

MCQ▾

The internal energy of moles of a gas is given , where is the volume of the gas at temperature and is a positive constant. One mole of the gas in state is allowed to expand adiabatically into vacuum to a final state . The temperature is –

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Choice (4)Response

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Question 74

Thermodynamics and Statistical Physics

Appeared in Year: 2006

Question

MCQ▾

The free energy of a photon gas enclosed in volume V is given by where is a constant and is the temperature of the gas. The chemical potential of the photon gas is –

Choices

Choice (4)Response

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b.

0

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d.

Question 75

Thermodynamics and Statistical Physics

Appeared in Year: 2006

Question

MCQ▾

A system of localized, non – interacting spin ions of magnetic moment each is kept in an external magnetic field . If the system is in equilibrium at temperature , then Helmholtz free energy of the system is –

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Choice (4)Response

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Question 76

Thermodynamics and Statistical Physics

Appeared in Year: 2006

Question

MCQ▾

The wavefunction of two identical particles in stated and are given by and , respectively. The particles obey Maxwell – Boltzmann statistics. The state of the combined two – particle system is expressed as;

Choices

Choice (4)Response

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