The ratio of the rate of diffusion of helium and methane under identical conditi

Question - The ratio of the rate of diffusion of helium and methane under identical condition of pressure and temperature will be___.

Options:

A . 4

B . 2

C . 1

D . 0.5

Answer: Option B
:
B

\frac{r_{H e}}{r_{C H_{4}}} = \sqrt{\frac{M_{C H_{4}}}{M_{H e}}} \Rightarrow \sqrt{(} \frac{16}{4}) \Rightarrow 2

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