# 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.

b.

c.

d.

## 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.

b.

c.

d.

## 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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