Question

Which of the gas diffuses faster among n2, o2 and ch4? Why?

Answer 1

CH4 diffuses faster as it has the least molecular mass among the three.

Answer 2

$CH_4$ diffuses fastest among $O_2$ , $N_2$  and $CH_4$

Explanation:

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

$\text{Rate of effusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$

Molar mass of $N_2$ gas = 28 g/mol

Molar mass of $O_2$ gas = 32 g/mol

Molar mass of $CH_4$ gas = 16 g/mol

Thus as molar mass of gases are in the order of $O_2$ > $N_2$  > $CH_4$, the rate of diffusion will be $O_2$ < $N_2$  < $CH_4$

Learn more about Graham's law:

https://brainly.com/question/13255462

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