Average Speed of Gas Molecules – Rankers Physics

Uncategorized: Practice Problem & Solution

If $M$ is the molar mass of a gas, then the average speed of its molecules at temperature $T$ is
$sqrt{frac{3RT}{pi M}}$
$sqrt{frac{8RT}{pi M}}$
$sqrt{frac{2RT}{M}}$
$sqrt{frac{3RT}{M}}$

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Uncategorized. Understanding the underlying formula is key to arriving at the correct answer below:

By kinetic theory of gases, the expression for average speed is $v_{text{avg}} = sqrt{frac{8RT}{pi M}}$.

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