Which of the following statements are not correct ?

Options

A. The ratio of `u_(av)` and `u_(mp)` is 2 : 3
B. The unit of van der waals: constant a is `L^(-2)` atm `mol^(-1)`
C. The mean square speed of a gas varies linearly with kelvin temperature
D. The increasing order of average, most probable and root mean square speeds is `u_(rms)ltu_(av)ltu_(mp)`

Answer

A, B, D