Thermodynamics-Concept of Temperature (NEET Physics): Questions 6 - 10 of 36

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Question number: 6

» Thermodynamics » Concept of Temperature

MCQ▾

Question

For an adiabatic expansion of a perfect gas, the value of PP is equal to

Choices

Choice (4) Response
a.

γ2VV

b.

γVV

c.

γVV

d.

VV

Question number: 7

» Thermodynamics » Concept of Temperature

MCQ▾

Question

One mole of a perfect gas in a cylinder fitted with a piston has a pressure P, volume V and temperature T. If the temperature is increased by 1 K keeping pressure constant, the increase in volume is

Choices

Choice (4) Response
a.

V91

b.

2V273

c.

V

d.

V273

Question number: 8

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Work done by 0.1 mole of a gas at 27°C to double its volume at constant pressure is (R = 2 cal mol °K)

Choices

Choice (4) Response
a.

546 cal

b.

600 cal

c.

60 cal

d.

54 cal

Question number: 9

» Thermodynamics » Concept of Temperature

MCQ▾

Question

An ideal gas at 27°C is compressed adiabatically to 827 of its original volume. If γ=53 , then the rise in temperature

Choices

Choice (4) Response
a.

450 K

b.

405 K

c.

225 K

d.

375 k

Question number: 10

» Thermodynamics » Concept of Temperature

MCQ▾

Question

An ideal gas expands isothermally from a volume V 1 to V 2 and then compressed to original volume V 1 adiabatically. Initial pressure is P 1 and final pressure is P 3. The total work done is W. Then

Choices

Choice (4) Response
a.

P3>P1,W>0

b.

P3<P1,W<0

c.

P3>P1,W<0

d.

P3=P1,W=0

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