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The mean free path of molecules of a gas...

The mean free path of molecules of a gas (radius r) is inversely proportional to

A

`r^3`

B

`r^2`

C

r

D

`sqrtr`

Text Solution

Verified by Experts

The correct Answer is:
B
Mean free path
`lamda=1/(sqrt2pid^2n)=(1times4)/(sqrt2pir^2n)thereforelamdaprop1/r^2`
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Knowledge Check

  • Statement I: For an ideal gas at constant temperatures the product of the pressure and the volume is constant. Statement II: The mean square velocity of the molecules is inversely proportional of mass.

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    Statement I is true, statement II is true, statement II is a correct explanation for statement I
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