Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 66

EASY

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IMPORTANT

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A gaseous mixture has equal masses of Helium and Oxygen. The ratio of $C_{p}$ and $C_{v}$ of the mixture is,

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Important Questions on Kinetic Theory

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Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 67

1

mole of a gas with

γ = \frac{7}{5}

is mixed with

1

mole of a gas with

γ = \frac{5}{3},

then the value of

γ

for the resulting mixture is:

EASY

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Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 68

The total kinetic energy of $1$ mole of $N_{2}$ at $27 ° C$ will be approximately
(Take $R = 2 cal {mol}^{- 1} ° C^{- 1}$ )

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Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 69

At which of the following temperature does any gas has average molecular kinetic energy double that of at

20 ° C

?

EASY

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IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 70

If the total number of

H_{2}

molecules are double that of the

O_{2}

molecules, then the ratio of total kinetic energies of

H_{2}

gas to that of

O_{2}

gas at

300 K

is,

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IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 71

If the pressure of a gas is

6 \times 10^{4} N m^{- 2}

, then the kinetic energy of molecules per unit volume will be:

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Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 72

Mean kinetic energy (or average energy) per gram molecule of a monatomic gas is given by

EASY

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Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 73

For a diatomic gas, change in internal energies per unit change in temperature for constant pressure and volume are

U_{1}

and

U_{2}

, respectively. Then

U_{1} : U_{2}

is

EASY

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IMPORTANT

Practice Book for MHT-CET Physics (Waves and Thermodynamics)>Chapter 2 - Kinetic Theory>TOPICWISE QUESTIONS>Q 74

At

27^{o} C

temperature, the kinetic energy of an ideal gas is

E_{1}

. If the temperature is increased to

327^{o} C

, then kinetic energy will be,