Thermodynamic and Statistical Physics-Thermodynamic Potentials (CSIR Physical Sciences): Questions 1 - 3 of 3

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 389 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Thermodynamic and Statistical Physics » Thermodynamic Potentials

Appeared in Year: 2013

MCQ▾

Question

A vessel has two compartments of volume V1 and V2, containing an ideal gas at pressure P1 and P2, and temperatures T1 and T2 respectively. If the wall separating the compartments is removed, the resultant equilibrium temperature will be – (June)

Choices

Choice (4) Response

a.

P1T1+P2T2P1+P2

b.

V1T1+V2T2V1+V2

c.

(T1T2)12

d.

P1V1+P2V2P1V1T1+P2V2T2

Question number: 2

» Thermodynamic and Statistical Physics » Thermodynamic Potentials

Appeared in Year: 2014

MCQ▾

Question

A Carnot cycle operates as a heat engine between two bodies of equal heat capacity until their temperature become equal. If the initial temperature of the bodies are T1 and T2 , respectively, and T1>T2 , then their common final temperature is – (Dec– 2013)

Choices

Choice (4) Response

a.

12(T1+T2)

b.

T22T1

c.

T12T2

d.

T1T2

Question number: 3

» Thermodynamic and Statistical Physics » Thermodynamic Potentials

Appeared in Year: 2011

MCQ▾

Question

A heater and a thermocouple are used to measure and control temperature T of a sample at T0=2500C . A feedback circuit supplies power ‘P’ to the heater according to the equation P=P0+G(T0T)DdTdt with approximately tuned values of coefficients G and D. In order to maintain temperature stability in the presence of an external heat perturbation which causes small but rapid fluctuation of temperature, it is necessary to, (December)

Choices

Choice (4) Response

a.

Decrease G

b.

Increase G

c.

Increases D

d.

Decrease D

Sign In