From the following statements concerning ideal gas at any given temperature T, select the correct one (s)

Options

A. The coefficient of volume expansion at constant pressure is same for all ideal gases
B. The average translational kinetic energy per molecule of oxygen gas is 3kT (k being Boltzmann constant)
C. In a gaseous mixture, the average translational kinetic energy of the molecules of each component is same
D. The mean free path of molecules increases with the decrease in pressure

Answer

A, C, D

Explanation

Coefficient of volume expansion at constant pressure is `(1)/(273)` for all gases. The average translational kinetic energy is same for molecules of all gases and for each molecules it is `(3)/(2)kT`.
Mean free path, `lambda=(kT)/(sqrt(2)pid^(2)P)`
(As P decreases, `lambda` increases)