Thermodynamics (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 76 - 79 of 86

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Question number: 76

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

For free expansion of the gas which of the following is true

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Q = W = 0 a n d ∆ E i n t = 0

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Question number: 77

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

In a given process for an ideal gas, ∆ W = 0 and ∆ Q < 0. Then for the gas

Choices

Choice (4) Response

a.

The temperature will increase

b.

The pressure will remain constant

c.

The temperature will decrease

d.

The volume will increase

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Question number: 78

» Thermodynamics » Concept of Temperature

MCQ▾

Question

An ideal gas is taken from point A to the point B, as shown in the P-V diagram, keeping the temperature constant. The work done in the process is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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Question number: 79

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

MCQ▾

Question

Which of the following processes are irreversible?

(1) Transfer of heat by radiation

(2) Electrical heating of a Ni chrome wire

(3) Transfer of heat by conduction

(4) Isothermal compression

Select the correct answers and mark it according to the following is:

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

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