Consider a mixture of oxygen and hydrogen kept at room temperature, As compared to a hydrogen molecule an oxygen molecule hits the wall

Options

A. with greater average speed
B. with smaller average speed
C. with greater average kinetic energy
D. with smaller average kinetic energy

Answer

B

Explanation

Average speed `prop sqrt(T/M) T` : absolute temperature
M : Molecular weight
And Average `KE prop T`
Since `M_(O_(2)) gt M_(H_(2))`
So its speed will be lesser than speed of `H_2` molecule while KE for both will be equal.