Correct statement(s) about molecular velocities is/are 

Options

A. With increase in the temperature fraction of molecules with most probable velocity decreases.
B. With increase in the temperature, RMS velocity of gas molecules increases
C. The correct order of fraction of molecules with different types of velocities is `C_p gt bar(C ) gt C`
D. The correct velocity order of various types of velocitics is `C gt barC gt C_p`

Answer

A, B, C, D

Explanation

a) as `T uarr ` fraction of moleucles with `u_(mp) darr`
b) as `T uarr, u_(rms) uarr`.
c, d) `C_p < barC < C implies ` fraction of `C_P > barC > C`.