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At what temperature is the rms velocity ...

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

A

10 K

B

20 K

C

30 K

D

40 K

Text Solution

Verified by Experts

The correct Answer is:
B
Now, rms velocity of `H_(2)` molecule = rms velocity of `O_(2)` molecule
`sqrt((3RxxT)/(2))=sqrt((3Rxx(47+273))/(32))`
`T=(2xx320)/(32)=20K`
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