Physics · JEE

Kinetic Theory of Gases Mock Test for JEE

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Q1PhysicsUnit 9: Kinetic Theory of Gases

In Maxwell's velocity distribution curve area under the graph

Q2PhysicsUnit 9: Kinetic Theory of Gases

A gas has an average speed of

10 \mathrm{m} / \mathrm{s}

and a collision frequency of

10 s^{-1} .

What is its mean free path?

Q3PhysicsUnit 9: Kinetic Theory of Gases

Assertion Vibrational energy of diatomic molecule corresponding to each degree of freedom is

k_{B} T

Reason For every molecule, vibrational degree of freedom is 2

Q4PhysicsUnit 9: Kinetic Theory of Gases

A sample of

O_{2}

gas and a sample of hydrogen gas both have the same no. of moles, the same volume and same pressure. Assuming them to be perfect gases, the ratio of temperature of oxygen gas to the temperature of hydrogen gas is :

Q5PhysicsUnit 9: Kinetic Theory of Gases

If for a gas

\frac{\boldsymbol{R}}{\boldsymbol{C}_{\boldsymbol{v}}}=\mathbf{0 . 6 7},

then the gas is made up of molecules which are :

Q6PhysicsUnit 9: Kinetic Theory of Gases

Equal masses of

\mathrm{N}_{2}

and

\mathrm{O}_{2}

gases are filled in vessels

A

and

B

. The volume of vessel B is double of A. The ratio of pressure in vessel

A

and

B

will be

Q7PhysicsUnit 9: Kinetic Theory of Gases

In a gas equation,

P V=R T, V

refers to the volume of:

Q8PhysicsUnit 9: Kinetic Theory of Gases

According to Charles law,

Q9PhysicsUnit 9: Kinetic Theory of Gases

Thermal neutrons are those which

Q10PhysicsUnit 9: Kinetic Theory of Gases

Assertion

V_{r m s}

and

V_{\text {mean }}

of gaseous molecules is nearly of the order of velocity of sound. Reason The sound travels in air because of vibrational molecular motion.

Q11PhysicsUnit 9: Kinetic Theory of Gases

Molar heat capacity of a gas does not depend on

Q12PhysicsUnit 9: Kinetic Theory of Gases

Assertion

C_{P}

is always greater than

C_{V}

in gases. Reason Work done at constant pressure is more than at constant volume.

Q13PhysicsUnit 9: Kinetic Theory of Gases

The total kinetic energy of 1 mole of

N_{2}

27 \mathrm{C}

will be approximately

Q14PhysicsUnit 9: Kinetic Theory of Gases

Gases begin to conduct electricity at low pressure because

Q15PhysicsUnit 9: Kinetic Theory of Gases

5 kilomoles of oxygen is heated at constant pressure. The temperature of the oxygen gas is increased from

295 \mathrm{K}

to 305 K. If the molar heat capacity of oxygen at constant pressure is 6.994 kcal/kmole K. The amount of heat absorbed in kcal,

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