MCQ
Suppose a container ia evacuated to leave just one molecule of a gas in it. Let $V_a$ and $v_{rms}$ represent the average speed and the $\text{rms}$ speed of the gas.
- A$v_a > v_{rms}$
- B$v_a < v_{rms}$
- ✓$v_a = v_{rms}$
- D$v_{rms}$ is undefined
✓
Answer
Correct option: C.
$v_a = v_{rms}$
Speed is constant and same for a single molecule. Thus, $\text{rms}$ speed will be equal to its average speed.
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