MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryGaseous stateGraham's Law of Diffusion and effusion
Rate of diffusion of a gas is
A.directly proportional to its density
B.directly proportional to its molecular weight
C.directly proportional to the square root of its
D.inversely proportional to the square root of its✓ Correct
Explanation
According to Graham’s law of diffusion, the rate at which a gas diffuses is inversely proportional to the density of the gas. Volume of the gas diffusion Rate of diffusion of gas= Time Taken 1 2 2 1 1 2 2 1 1 , Molar Mass=2 Vapour Density r d r d r d Also r M r M >> x >> Kinetic theory of gases
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