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NEET Class neet Answered

If α is the mean free path of the gas molecule, then calculate mean free path along x-axis and along the xy plane.
Asked by patra04011965 | 23 Apr, 2020, 09:21: PM
answered-by-expert Expert Answer
Mean free path λ is given by , 
 
begin mathsize 14px style lambda space equals space fraction numerator 1 over denominator square root of 2 space pi space d squared space n end fraction end style
 
where d is moleculer diameter, n is number density of molecules.
 
Above definition of mean free path is independent of direction.
 
we can not make any constrain to gas molecules to move only along x-axis or to move only in x-y plane
 
Hence either along x-axis or in x-y plane , mean free path is as defined above
Answered by Thiyagarajan K | 23 Apr, 2020, 09:57: PM
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