Kinetic Theory of Gases (NEET Physics): Questions 29 - 33 of 39

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Question number: 29

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

To double the volume of a given mass of an ideal gas at 27ºC keeping the pressure constant, one must raise the temperature in degree centigrade to

Choices

Choice (4) Response

a.

627

b.

327

c.

54

d.

600

Question number: 30

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

The pressure P, volume V and temperature T of a gas in the jar A and the other gas in the jar B at pressure 2 P, volume V4 and temperature 2T, then the ratio of the number of molecules in the jar A and B will be

Choices

Choice (4) Response

a.

4: 1

b.

1: 2

c.

1: 1

d.

2: 1

Question number: 31

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

MCQ▾

Question

The relation between the gas pressure P and average kinetic energy per unit volume E is

Choices

Choice (4) Response

a.

P=32E

b.

P=12E

c.

P=23E

d.

P=E

Question number: 32

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

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 raise 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.

30 Cal

b.

50 Cal

c.

70 Cal

d.

90 Cal

Question number: 33

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300 K. The ratio of the average rotational kinetic energy per N 1 molecule to that per N 2 molecule is

Choices

Choice (4) Response

a.

1: 2

b.

Depends on the moments of inertia of the two molecules

c.

2: 1

d.

1: 1

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