Which of the gases diffused faster among $N_{2}, O_{2}, C H_{4}$ . Why?

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Solution

The rate of diffusion of gases is inversely proportional to molecular weight. The lighter the gas, the faster is the diffusion. The molecular weights of $C H_{4}$ is $16, N_{2}$ is $28$ & $O_{2}$ is $32$ .
Hence, $C H_{4}$ will diffuse fast .

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