# Kinetic Theory of Gases (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 16 - 20 of 40

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## Question number: 16

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

If pressure of a gas contained in a closed vessel is increased 0.4 % when heated by 1°C, the initial temperature must be

### Choices

Choice (4) Response

a.

250°C

b.

2500 K

c.

25°C

d.

250 K

## Question number: 17

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

Let respectively denote the mean speed, root mean square speed and most probable speed of the molecules in an ideal monoatomic gas at absolute temperature T, the mass of a molecule is m. Then

(1)

(2) The average kinetic energy of a molecule is .

(3) No molecule can have speed greater than

(4) No molecule can have speed less than

select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1 and 2 are correct

## Question number: 18

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

### Question

A flask is filled with 15 gm of an ideal gas at 27°C and its temperature is raised to 47°C. The mass of the gas that has to be released to maintain the temperature of the gas in the flask at 52°C and the pressure remaining the same is

### Choices

Choice (4) Response

a.

1.5 g

b.

2.5 g

c.

1.0 g

d.

2.0 g

## 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: 19 (1 of 2 Based on Passage) Show Passage

» Kinetic Theory of Gases » Kinetic Theory of Gases

MCQ▾

### Question

The pressure in left compartment after thermal equilibrium is achieved is

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## 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

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