Find the RMS, average and most probable speeds of `O_2` at `27^@C`.

Explanation

`u_(rms) = sqrt((3 RT)/(M ) ) = sqrt((3 xx 8.314 xx 10^7 xx 300 )/( 32 ))`
` = 4.835 xx 10^4 cm //sec `
` T = 27^@ C= 300 K`
` M = 32 (O_2)`
` u_("average") = 0.9213 xx u_(rms)`
` = 0.9213 xx 4.835 xx 10^4 `
` = 4.455 xx 10^4 cm //sec `
` u_(mp ) = 0.8166 xx u_(rms)`
` = 3.948 xx 10^4 cm// sec `