A mixture of helium and hydrogen gases is filled in a vessel at `30^(@) C`. Compare the rms velocities of molecules of the two gases. Atomic weights of hydrogen and helium are 1 and 4 respectively.

Explanation

To compare the root mean square (rms) velocities of helium and hydrogen gases at a temperature of \(30^\circ C\), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Formula for RMS Velocity**:
The root mean square velocity (\(V_{rms}\)) of a gas is given by the formula:
\[
V_{rms} = \sqrt{\frac{3RT}{M}}
...