Which of the following gases has the lowest rate of diffu...
Which of the following gases has the lowest rate of diffusion under the same condition? [H = 1.00; He = 4. 00; O = 16.0; CI = 35.5]
CI2
H2
He
O2
Correct answer is A
According to Graham's law of diffusion and effusion,
r \(\propto\) \(\sqrt{\frac{1}{M}}\).
Therefore, the more the molar mass, the less the rate of diffusion and effusion.
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