1.

At what temperature is the average velocity of `O_(2)` molecule equal to the root mean square velocity at `27^(@)C`?A. `80.57^(@)C`B. `80^(@)C`C. `83^(@)C`D. `86.5^(@)C`

Answer» Correct Answer - A
`u_(av)=v_(rms)`
`sqrt((8RT)/(pim))=sqrt((3RT)/(m))`
`(8RT)/(pim)=(3RT)/(m)implies (8RT)/(pim)=(3Rxx300)/(m)`
`T= 353.57 K`
`t= 80.57^(@)C`


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