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Grade: 11


Calculate relative rate of effusion of SO2 to CH4,if the mixture obtained by effusing out a mixture with molar ratio nso2/nch4=8/1 for three effusing steps.

4 years ago

Answers : (2)

Vikas TU
12284 Points
First U must know the Rate of effusion formulae.
That is:
R = PA/root(MT)
For SO2,
R1 = P1A/root(64T)................(1)
P1V = 8nRT..............(2)
For CH4,
R2 = P2A/root(16T)...............(3)
P2V = nRT.....................(4)
divide eqn. (1) and (3)
and eqn. (2) and (4),
we get,
R1/R2 = (P1/P2)*root(16/64) =P1/2P2
P1/P2 = 8
R1/R2 = 8/2 = 4/1 => 4:1
is the answer. 
4 years ago
Mayhul Jindal
36 Points
							Nso2/nch4×√(m.m of ch4/m.m of so2)=rate of diffusion of so2/ rate of diffusion of ch4Therefore 8/1×√(16/64)^3  as there are three effusing stage8/1×1/8=1:1 which is the answer
3 years ago
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