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Find the rms speed of hydrogen molecules...

Find the rms speed of hydrogen molecules at room temperature `( = 300 K)`.

Text Solution

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The correct Answer is:
A, C
Mass of (1) mole of hydrogen gas
= `2g = 2 xx 10^-3 kg`
`rArr v_(r m s) sqrt(( 3 R T)/(M))`
= `sqrt((3 xx 8.31 xx 300)/(2 xx 10^-3))`
= `1.93 xx 10^3 m//s`.
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