1.

At what temperature is the rms velocity of a hydrogen molecule equal to that of an oxygen molecule at 47^(@)C?

Answer»

`-73K`
`3K`
`20K`
`80K`

SOLUTION :`v_(1)=SQRT((3RT_(1))/(M_(1)))`, `v_(2)=sqrt((3RT_(2))/(M_(2)))` i.e. `T_(1)=(M_(1))/(M_(2))T_(2)=(2)/(32)xx320=20K`


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