# Kinetic Theory of Gases-Kinetic Energy and Temperature (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 17 - 21 of 30

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## Question number: 17

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

In the two vessels of same volume, atomic hydrogen and helium at pressure 1 atm and 2 atm are filled. If temperature of both the samples is same, then average speed of hydrogen atoms < C H > will be related to that of helium < C He > as,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 18

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

For a gas at a temperature T the root-mean-square velocity V r. m. s, the most probable speed V mp, and the average speed V av obey the relationship

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 19

» 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: 20

» 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: 21

» 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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