Kinetic Theory of Gases (NEET Physics): Questions 24 - 28 of 40

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Question number: 24

» Kinetic Theory of Gases » Work Done on Compressing a Gas

MCQ▾

Question

1 7 calories of heat are required to raise the temperature 2 moles of an ideal gas at constant pressure from 30°C to 35°C The amount of heat required to rise the temperature of same gas through the same range (30° C to 35° C) at constant volume (R = 2 Cal/mole K)

Choices

Choice (4) Response

a.

70 Cal

b.

450 Cal

c.

50 Cal

d.

30 Cal

Question number: 25

» Kinetic Theory of Gases » Equation of State of a Perfect Gas

MCQ▾

Question

Gas at a pressure P 0 is contained in a vessel. If the mass of all the molecules are halved and their speeds an doubled, the resulting pressure p will be equal to

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 26

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The kinetic energy of one gram molecule of a gas at 70 0 C temperature and normal pressure is (R = 8.31 J/mole- K)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 27

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

If pressure of a gas contained in a closed vessel is increased 0.2 % when heated by 1°C, the initial temperature must be

Choices

Choice (4) Response

a.

25°C

b.

250 K

c.

500 K

d.

None of the above

Question number: 28

» Kinetic Theory of Gases » Kinetic Energy and Temperature

Assertion-Reason▾

Assertion (Ꭺ)

Equal masses of helium and oxygen gases are given equal quantities of heat. There will be a greater rise in the temperature of helium compared to that of oxygen.

Reason (Ꭱ)

The molecular weight of oxygen is more than the molecular weight of helium.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

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