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Sound velocity is maximum in
Sound velocity is maximum in
$\text{H}_2$
$\text{N}_2$
$\text{He}$
$\text{O}_2$
Solution
Velocity of sound in gases, $v = \sqrt{\frac{\gamma RT}{M}} \Rightarrow v \propto \frac{1}{\sqrt{M}}$. Since, $M$ is minimum for $\text{H}_2$, so sound velocity is maximum in $\text{H}_2$.
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