What is degrees of freedom? Explain why monatomic, diatomic, triatomic and polyatomic molecules should have different degrees of freedom and what should be their respective values.

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 9

What is the principle of equipartition of energy? From this principle deduce the relations between specific heats of gases and the degrees of freedom of the molecules. Find the values of

γ

for different kinds of molecules 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 10

Draw suitable graphs and explain qualitatively the essential facts that we know from Maxwell's law of distribution of molecular speed.

HARD

11th West Bengal Board

IMPORTANT

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

What is most probable speed of the gas molecules? Compare its value with the mean and

r . m . s .

speeds of the gas molecules.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 12

What is mean free path of a molecule? Write down an expression for the mean free path of a molecule and explain how it depends on molecular density, pressure and temperature of a gas.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 13

Derive an expression for the mean free path of a molecule.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 20 - Kinetic Theory of Gases>EXERCISE>Q 14

State the characteristics of Brownian motion.

MEDIUM

11th West Bengal Board