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Calucate the root mean square speed of h...

Calucate the root mean square speed of hydrogen molecules at `373.15 K`.

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The correct Answer is:
A, B

`v_(rms) = sqrt((3RT)/M) = sqrt((3 xx 8.31 xx 373.15)/(2 xx 10^-3))`
= `2156 m//s = 2.15 km//s`.
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