Effusion

Ans:2
Please explain how to solve this sum. Please show working. This is my attempt:

this is the correct working..hope you got it..

@dikshantgautam Sorry. Couldn't understand.
What is PO2 & PCH4? Partial pressure of Oxygen and methane?
Why is rate of diffusion directly proportional to partial pressure?
Isn't rate of diffusion inversely proportional to only molecular mass?
The number of moles of diffusing particles are not supposed to have any effect on rate of diffusion. Isn't it? Please explain.
Why are we multiplying 3/32 × 16/2× 1/√2? I mean why are we multiplying ratio of moles & square root of molar mass?
Please explain this calculation.

@anag
why are you just complicating the things...so simple by the law of effusion

@dikshantgautam Thanks but how can we say that
P1/P2=n1/n2? Volume is not constant here. Isn't it?

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