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The mean free path (lambda) of a gas sam...

The mean free path `(lambda)` of a gas sample is given by :

A

`lambda` = sqrt2pisigma^2N`

B

`lambda` = 1/sqrt2pisigma^2N`

C

`lambda = sqrt2upisigma^2N`

D

None of these

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The correct Answer is:
B
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MBD PUBLICATION-STATES OF MATTER (GASES AND LIQUIDS)-QUESTION BANK
  1. The critical temperature of a gas is that temperature :

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  2. The term that accounts for intermolecular force in van der Waals' equa...

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  3. The mean free path (lambda) of a gas sample is given by :

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  4. Which does not change during compression of a gas at constant temperat...

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  5. As the speed of molecules increase, the number of collisions per secon...

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  6. A real gas at high pressure occupies under identical conditions :

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  7. The unit of van der Waals' constant 'a' is :

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  8. The temperature at which the second virial coefficient of a real gas i...

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  9. The cooling caused by the adiabatic expansion of a compressed gas belo...

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  10. While 'He' is allowed to expland through a small jet under adibatic co...

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  11. The average speed of gas molecules is equal to :

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  12. The temperature of a sample of gas is raised from 127^@C to 527^@C. Th...

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  13. One mole each of a monoatomic, diatomic and triatomic gases are mixed,...

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  14. One mole of an ideal monoatomic gas mixed with 1 mole of an ideal diat...

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  15. The average speed of O2at 273 K is equal to that of H2 at :

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  16. Two sealed containers of the same capacity and at the same T are fille...

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  17. For hydrogen gas Cp - Cv = a, and for oxygen gas Cp - Cv = b , so the ...

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  18. For a gas ((R)/(Cv)) = 0.67, the gas is made up of molecule which are ...

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  19. The density of air would be maximum at :

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  20. At what temperature would the volume of a given mass of a gas at const...

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