The root-mean square speeds of the molecules of different ideal gases, maintained at the same temperature are the same.

Explanation

To determine whether the statement "The root-mean square speeds of the molecules of different ideal gases, maintained at the same temperature are the same" is true or false, we can analyze the formula for root-mean square speed (Vrms) of an ideal gas.

### Step-by-step Solution:

1. **Understand the formula for Vrms**:
The root-mean square speed (Vrms) of gas molecules is given by the formula:
\[
V_{rms} = \sqrt{\frac{3RT}{M}}
...