A container of fixed volume has a mixture of one mole of hydrogen and one mole of helium in equilibrium at
temperature T. Assuming the gases are ideal, the correct statement(s) is (are)
Select ALL correct options:
A
The average energy per mole of the gas mixture is 2RT.
B
The ratio speed of sound in the gas mixture to that in helium gas is $\sqrt{6 / 5}$.
C
The ratio of the rms speed of helium atoms to that of hydrogen molecules is 1/2.
D
The ratio of the rms speed of helium atoms to that of hydrogen molecules is $1 / \sqrt{2}$.
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