MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryGaseous stateGraham's Law of Diffusion and effusion
The rate of diffusion of methane at a given temperature is thrice that of a gas X. The molecular weight of X is
A.144.0✓ Correct
B.32.0
C.27.0
D.64.0
Explanation
Given that rate of diffusion of methane at temperature is twice that of X. 1 2 1 2 1 2 2 1 2 2 2 2 2 3 , / / 3 / /16 9 /16 144.0 r r r methane r X gas r r M M r r M M M
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