MCQ
Sound velocity is maximum in
- ✓${H_2}$
- B${N_2}$
- C$He$
- D${O_2}$
✓
Answer
Correct option: A.
${H_2}$
a
(a) $v = \sqrt {\frac{{\gamma RT}}{M}} $
(a) $v = \sqrt {\frac{{\gamma RT}}{M}} $
==> $v \propto \frac{1}{{\sqrt M }}$.
Since $M$ is minimum for ${H_2}$ so sound velocity is maximum in ${H_2}$.
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