Calculate the RMS velocity of hydrogen molecule at `0^@C`.

Explanation

To calculate the RMS (Root Mean Square) velocity of a hydrogen molecule at 0°C, we will follow these steps:

### Step 1: Understand the RMS velocity formula
The formula for RMS velocity (v_rms) is given by:
\[ v_{rms} = \sqrt{\frac{3RT}{M}} \]
where:
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