ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>NUMERICALS>Q 36

MEDIUM

11th ICSE

IMPORTANT

Earn 100

Calculate for hydrogen (molecular-weight $= 2$ ) at $27 ° C$ , the kinetic energy of one gram gas.

Important Questions on Kinetic Theory of Gases

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>NUMERICALS>Q 36

Calculate for hydrogen (molecular-weight

= 2

) at

27 ° C

, the root-mean-square velocity of the molecules.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>NUMERICALS>Q 37

The first excited state of hydrogen atom is

10.2 e V

higher than its ground state. At what temperature will the hydrogen atom go from its ground state to the first excited state?

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 1

An inverted vessel (bell) lying at the bottom of a lake,

47.6 m

deep, has

50 c m^{3}

of air trapped in it. The bell is brought to the surface of the lake. The volume of the trapped air will now be:

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 2

When a gas filled in a closed vessel is heated through

1 ° C

, its pressure increases by

0.4

percent. The initial temperature of the gas was:

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 3

The temperature of a gas filled in a box is raised from

27 ° C

to

87 ° C

. The initial pressure of

2.0 a t m

of the gas changes to:

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 4

The equation of state corresponding to

8 g

of

O_{2}

is:

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 5

A vessel contains

1

mole of

O_{2}

gas (molar mass

32

) at a temperature

T

. The pressure of the gas is

P

. An identical vessel containing

1

mole of

H_{e}

gas (molar mass

4

) at a temperature

2 T

has a pressure of:

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 20 - Kinetic Theory of Gases>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 6

If a gas obeys the equation

P V = R T

, then the graph between

P V

and

P

for this gas will be: