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In a very good vacuum system in the laboratory, the vacuum attained was $10^{- 13} atm$ . If the temperature of the system was $300 K$ , the number of molecules present in a volume of $1 {cm}^{3}$ is

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Important Questions on Thermometry, Thermal Expansion and Kinetic Theory of Gases

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JEE Advanced

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 6

If nitrogen gas molecule goes straight up with its

rms

speed at

0 ° C

from the surface of the earth and there are no collisions with other molecules, then it will rise to an approximate height of

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 7

The given $p - U$ graph shows the variation of internal energy of an ideal gas with the increase in pressure. Which of the following pressure $-$ volume graph is equivalent to this graph?

Question Image

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JEE Advanced

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 8

28 g

N_{2}

gas is contained in a flask at a pressure of

10 atm

and at a temperature of

57 ° C

. It is found that due to leakage in the flask, the pressure is reduced to half and the temperature to

27 ° C

. The quantity of

N_{2}

gas that leaked out is

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JEE Advanced

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 9

A mixture of

4 g

of hydrogen and

8 g

of helium at

NTP

has a density about

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JEE Advanced

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 10

The pressure

(p)

and the density

(ρ)

of the given mass of a gas expressed by Boyle's law,

p = K ρ

holds true

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JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 11

During an experiment, an ideal gas is found to obey a condition

\frac{p^{2}}{ρ} =

constant. (

ρ =

density of the gas). The gas is initially at temperature

T

, pressure

p

and density

ρ

. The gas expands such that density changes to

ρ / 2

HARD

JEE Advanced

IMPORTANT

Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 12

During an experiment, an ideal gas is found to obey a condition

V p^{2} =

constant. The gas is initially at a temperature

T

, pressure

p

and volume

V

. The gas expands to volume

4 V

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JEE Advanced

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Understanding Physics JEE Main & Advanced WAVES AND THERMODYNAMICS>Chapter 4 - Thermometry, Thermal Expansion and Kinetic Theory of Gases>Exercises>Q 1

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In a very good vacuum system in the laboratory, the vacuum attained was 10-13 atm. If the temperature of the system was 300 K, the number of molecules present in a volume of 1 cm3 is

Important Questions on Thermometry, Thermal Expansion and Kinetic Theory of Gases

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In a very good vacuum system in the laboratory, the vacuum attained was $10^{- 13} atm$ . If the temperature of the system was $300 K$ , the number of molecules present in a volume of $1 {cm}^{3}$ is