Thermodynamics-Laws of Thermodynamics (NEET Physics): Questions 1 - 5 of 30

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Question number: 1

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

The latent heat of vaporization of water is 2240 J/gm. If the work done in the process of expansion of 1 g of water is 168 J, then increase in internal energy is

Choices

Choice (4) Response
a.

1904 J

b.

2072 J

c.

2240 J

d.

2408 J

Question number: 2

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

When an ideal gas in a cylinder was compressed isothermally by a piston, the work done on the gas was found to be 1.5 × 10 4 Joule. During this process about

Choices

Choice (4) Response
a.

3.6 × 10 3 cal of heat flowed out from the gas

b.

3.6 × 10 3 cal of heat flowed into the gas

c.

1.5 × 10 4 cal of heat flowed into the gas

d.

1.5 × 10 4 cal of heat flowed out from the gas

Question number: 3

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

When an ideal gas in a cylinder was compressed isothermally by a piston, the work done on the gas was found to be 2.0 × 10 4 Joule. During this process about

Choices

Choice (4) Response
a.

2.0 × 10 3 cal of heat flowed out from the gas

b.

4.7 × 10 3 cal of heat flowed into the gas

c.

2.0 × 10 3 cal of heat flowed into the gas

d.

4.7 × 10 3 cal of heat flowed out from the gas

Question number: 4

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

The latent heat of vaporization of water is 2240 J/gm. If the work done in the process of expansion of 1 g of water is 150 J, then increase in internal energy is

Choices

Choice (4) Response
a.

2408 J

b.

1904 J

c.

2072 J

d.

2090 J

Question number: 5

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

The pressure in the tyre of a car is four times the atmospheric pressure at 300 K. If this tyre suddenly bursts, its new temperature will be (γ = 1.4)

Choices

Choice (4) Response
a.

300(4)0.42.4

b.

300(4)1.40.4

c.

300(4)1.40.4

d.

300(4)0.41.4

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