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  4. The r.m.s. velocity of hydrogen at 27°C, R = 8.314 J mol-1 K-1 is

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Q. The r.m.s. velocity of hydrogen at $27^{\circ}C$, $R = 8.314 J\,mol^{-1} K^{-1}$ is

States of Matter

Solution:

$U_{rms}=\sqrt{\frac{3RT}{M_{W}}} $
$\Rightarrow \sqrt{\frac{3\times8.314\times300}{2\times10^{-3}}}$
$U_{rms}=1934 \,m/ sec$