The gas that has the slowest rate of diffusio | vedclass

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(C) According to Graham's Law of Diffusion,the rate of diffusion $(r)$ of a gas is inversely proportional to the square root of its molar mass $(M)$:

Vedclass · Accepted Answer

$CO_2$

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(C) According to Graham's Law of Diffusion,the rate of diffusion $(r)$ of a gas is inversely proportional to the square root of its molar mass $(M)$: $r \propto \frac{1}{\sqrt{M}}$.First,calculate the molar masses of the given gases:$M(H_2) = 2 \ g/mol$$M(CH_4) = 16 \ g/mol$$M(O_2) = 32 \ g/mol$$M(CO_2) = 44 \ g/mol$Since $CO_2$ has the highest molar mass $(44 \ g/mol)$,it will have the slowest rate of diffusion.Therefore,the correct option is $C$.

The gas that has the slowest rate of diffusion among $O_2$,$H_2$,$CO_2$ and $CH_4$ is

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