A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 15

MEDIUM

11th West Bengal Board

IMPORTANT

Earn 100

Calculate the average kinetic energy of translation of a nitrogen molecule at $27 ° C$ .

Important Questions on Kinetic Theory of Gases

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 16

2 gm mol

of helium having

r . m . s .

speed of molecules

1000 {ms}^{- 1}

and

0.5 gm mol

of nitrogen having

r . m . s .

speed

3000 {ms}^{- 1}

are mixed in thermally insulated container. What are the

r . m . s .

speeds of helium and nitrogen molecules after equilibrium is reached?

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 17

A gas is kept in a closed vessel of volume

8.3 \times 10^{- 3} m^{3}

. The pressure and temperature of the gas are

1.6 \times 10^{6} N / m^{2}

and

27 ° C

.

2.49 \times 10^{4} J

of heat is supplied to the gas. Calculate the final temperature and pressure of the gas. (Given molar

sp .

heat at constant pressure of the gas is

\frac{5}{2} R

and

R = 8.3 J / K - mol

)

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 18

One gm mole of oxygen at

23 ° C

is mixed with two

gm mol

of helium at

123 ° C

. What is the temperature of the mixture?

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 19

In a closed vessel one gm mole of nitrogen is kept at a temperature of

300 K

. What is the amount of heat required to raise the temperature of the gas, so that the

r . m . s .

Speed of molecules becomes

3

Times its initial value. Given:

R = 2 cal / k - mol

.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 20

Calculate the most probable speed, mean speed and rootmean-square speed for nitrogen at

300 K

.

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 1

The average velocity of a gas molecule is

\bar{c}, rms

velocity

c_{rms}

and the most probable velocity,

c_{m}

. Then

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 2

There is a mixture of hydrogen and oxygen in a vessel. The rms velocity of oxygen molecules is

EASY

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 3

The wall of a gas container experiences a pressure because