Question

Distribution of fraction of molecules with velocity is represented in the figure. Velocity corresponding to $X$ is:

• A. $\sqrt{\frac{2RT}{M}}$
• B. $\sqrt{\frac{3RT}{M}}$
• C. $\sqrt{\frac{8RT}{M}}$
• D. none of these

Answer 1

The correct option is A $\sqrt{\frac{2RT}{M}}$

Distribution of fraction of molecules with velocity.

Here, $x$ is the position of most probable velocity.

most probable velocity, $V_{mp}=\sqrt{\frac{2RT}{M}},$ where $T=\text{Absolute temperature}M=\text{Molar mass of gas.}$