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

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