MCQ
By what factor does the average velocity of a gaseous molecules increase when the temperature is doubled?
- A$2$
- B$2.8$
- C$4.0$
- ✓$4.5$
✓
Answer
Correct option: D.
$4.5$
$\text{V}=\sqrt{\frac{8\text{RT}}{\text{M}\pi}}$ when, temperature is doubled, $'V\ '$ will increase by $\sqrt{2}$ i.e. $1.414$ times.
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