Thermodynamic and Statistical Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 4 - 6 of 56

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Question number: 4

» Thermodynamic and Statistical Physics » Laws of Thermodynamics

Appeared in Year: 2014

MCQ▾

Question

The pressure P of a fluid is related to its number density Equation by the equation of state Equation where Equation and Equation are constants. If the initial volume of the fluid is Equation the work done on the system when it is compressed so as to increase the number density from an initial value of Equation to Equation is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 5

» Thermodynamic and Statistical Physics » Phase Equilibria

Appeared in Year: 2013

MCQ▾

Question

The entropy S of a thermodynamic system as a function of energy E is given by the following graph,

Entropy as a function of energy

Entropy as a Function of Energy

In figure the entropy S of a thermodynamic system as a function of energy E is shown.

The temperature of the phases A, B and C denoted by Equation and Equation , respectively, satisfy the following inequalities – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 6

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2013

MCQ▾

Question

The speed Equation of the molecules of mass m of an ideal gas obeys Maxwell’s velocity distribution law at an equilibrium temperature T. Let Equation denote the components of the velocity and Equation the Boltzmann constant. The average value of Equation where Equation and Equation are constant, is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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