. Assertion:Mean free path of a gas molecule varies inversely as density of the gas


Reason:Mean free path varies inversely as pressure of the gas.

 

Best Answer

Ans || (b)

Solution ||| The mean free path od a gas molecule is the average distance between two successive collisions. It is represented by l.

mean free path of a gas

Here,s=0 diameter of molecule and k = Boltzmann’s constant.Hence, mean free path varies inversely as density of the gas. It can be easily proved that the mean free path varies directly as the temperature and inversely as the pressure of the gas

 

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