Thermodynamic and Statistical Physics-Laws of Thermodynamics (CSIR Physical Sciences): Questions 1 - 3 of 6

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Question number: 1

» Thermodynamic and Statistical Physics » Laws of Thermodynamics

Appeared in Year: 2013

MCQ▾

Question

Ten grams of ice at 00 C is added to a beaker containing 30 grams of water at 250 C. What is the final temperature of the system when it comes to thermal equilibrium?

(The specific heat of water is 1calgm11 and latent heat of melting of ice is 80calgm1 ) (June)

Choices

Choice (4) Response

a.

1.25

b.

7.5

c.

0

d.

12.5

Question number: 2

» 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 ρ by the equation of state P=aρ+bρ2; where a and b are constants. If the initial volume of the fluid is V0, the work done on the system when it is compressed so as to increase the number density from an initial value of ρ0 to 2ρ0 is – (December)

Choices

Choice (4) Response

a.

(3a2+7ρ0b3)ρ0V0

b.

2ρ0V0

c.

(aln2+bρ0)ρ0V0

d.

(a+bρ0)ρ0V0

Question number: 3

» Thermodynamic and Statistical Physics » Laws of Thermodynamics

Appeared in Year: 2012

MCQ▾

Question

Let ΔW be the work done in a quasistatic reversible thermodynamic process. Which of the following statement about ΔW is correct? (December)

Choices

Choice (4) Response

a.

ΔW is a perfect differential if the process is adiabatic

b.

ΔW is always a perfect differential

c.

ΔW cannot be a perfect differential

d.

ΔW is a perfect differential if the process is isothermal

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