Find `rms` speed of oxygen molecules at temperature `27^(@)C`.

Explanation

`v_(rms) = sqrt((3 R T)/(M_(0)))`
`R = 8.3 J//mol-K, T = 27 + 273 = 300 K`
`M_(0) = 32 g//mol = 32 xx 10^(-3) kg//.mol`
`= sqrt((3 xx 8.3 xx 300)/(32 xx 10^(-3)))`
`= 483 m//s`