Sound velocity is maximum in - Vidyadip

MCQ

Sound velocity is maximum in

✓
$\mathrm{H}_2$
B
$N_2$
C
$\mathrm{He}$
D
$\mathrm{O}_2$

✓

Answer

Correct option: A.

$\mathrm{H}_2$

(a) $v=\sqrt{\frac{\gamma R T}{M}} \Rightarrow v \propto \frac{1}{\sqrt{M}}$. Since $M$ is minimum for $H_2$ so sound velocity is maximum in $H$.

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