# Kinetic Theory of Gases (NEET Physics): Questions 20 - 23 of 40

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## Passage

Read the passage given below and answer the questions that follows:

A diathermic piston divides adiabatic cylinder of volume V 0 into two equal parts as shown in the figure. Both parts contain ideal monoatomic gases. The initial pressure and temperature of gas in left compartment are P 0 and T 0 while that in right compartment are 2P 0 and 2T 0. Initially the piston is kept fixed and the system is allowed to acquire a state of thermal equilibrium.

## Question number: 20 (2 of 2 Based on Passage) Show Passage

» Kinetic Theory of Gases » Kinetic Theory of Gases

MCQ▾

### Question

The heat that flown from right compartment to left compartment before thermal equilibrium is achieved is

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 21

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

Which of the following statements is true?

### Choices

Choice (4) Response

a.

The root mean square speed of the molecules of different ideal gases, maintained at the same temperature are the same

b.

Given sample of 1 cc of hydrogen and 1 cc of oxygen both at NTP; oxygen sample has a large number of molecules

c.

Two different gases at the same temperature and pressure have equal root mean square velocities.

d.

Absolute zero temperature is not zero energy temperature

## Question number: 22

» 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: 23

» 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.

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