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Select the incorrect statement from the ...

Select the incorrect statement from the following statements.

A

Pressure of a gas is directly proportional to mean square speed

B

Mean free path of a molecule is inversely Proportional to temperature

C

The value of specific heat capacity of helium gas is `5/2R`

D

Number of degree of freedom for diatomic molecule is 7.

Text Solution

Verified by Experts

The correct Answer is:
B
Mean free path:
`lamda= (KT)/(sqrt2pid^2P)`
`:. lamda prop T `
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PREMIERS PUBLISHERS-KINETIC THEORY OF GASES-OTHER IMPORTANT QUESTIONS & ANSWERS (I. Multiple Choice Questions.)
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  2. Select the correct statement from the following statements.

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  3. Select the incorrect statement from the following statements.

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  4. The ratio of the specific heats CP/CV = gamma in terms of degrees of f...

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  5. If the pressure in a closed vessel is reduced by drawing out some , th...

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  6. If gamma=CP/CV for a gas and R is universal gas constant then select ...

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  7. According to kinetic theory of gases, molecules of a gas behave like .

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  8. A gas behaves as an ideal gas at :

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  9. Select the correct pair from the following parameters.

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  10. The mean translational kinetic energy of a perfect gas molecule at the...

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  11. The ratio of rotational kinetic energy to the total kinetic energy of ...

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  12. Which one of the following is not an assumption of kinetic theory of g...

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  13. At 0 K, which of the following properties of a gas will be zero ?

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  14. Match the parameters given in column I with the expressions given in c...

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  15. Two gases A and B having same pressure P, volume V , and Temperature T...

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  16. The adjoining figure shows graph of pressure and volume of a gas at tw...

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  17. At a given temperature , the ratio of kinetic energies of 3 g of hydro...

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  18. Which of the following graphs represent the behaviour of an ideal gas ...

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  19. Assertion : For an ideal gas, at constant temperature, the product of...

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  20. A gas with specific heat ratio gamma = 5/3 is compressed suddenly to 1...

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