At what temperature is the average velocity of `O_(2)` molecule equal to the root mean square velocity at `27^(@)C`?

Explanation

`v_(av) = v_(rms)`
`sqrt((8RT)/(pi M)) = sqrt((3RT)/(M))`
`(8RT)/(pi M) = (3R xx 300)/(M)`
`T = 353.57 K`
`t = 80.57^(@)C`