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The molecular weighs of oxygen and hydro...

The molecular weighs of oxygen and hydrogen are 32 and 2 respectively. The root mean square velocities of oxygen and hydrogen at `NTP` are in the ratio

A

`4 : 1`

B

`1 : 4`

C

`1 : 1`

D

`2 : 1`

Text Solution

Verified by Experts

The correct Answer is:
B
`v_(1) prop (1)/(sqrt(M_(1))) and v_(2) prop (1)/(sqrtM_(2))`
`:. (v_(2))/(v_(1)) = sqrt((M_(1))/(M_(2))) = sqrt((2)/(32)) = (1)/(4)`
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