Thermodynamics (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 1 - 5 of 86

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Question number: 1

» Thermodynamics » Concept of Temperature

MCQ▾

Question

In the following P-V diagram two adiabatic cut two isothermals at temperatures T 1 and T 2 (figure). The value of Equation will be

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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Question number: 2

» Thermodynamics » Concept of Temperature

MCQ▾

Question

A given system undergoes a change in which the work done by the system equals the decrease In its internal energy. The system must have undergone an

Choices

Choice (4) Response

a.

Adiabatic change

b.

Isobaric change

c.

Isochoric change

d.

Isothermal change

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Question number: 3

» 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

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Question number: 4

» 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

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Question number: 5

» 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

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