Five moles of helium are mixed with two moles of hydrogen to form a mixture. Take molar mass of helium `M_(1)=4g` and that of hydrogen `M_(2)=2g`

Options

A. The equivalent molar mass of the mixture is `24/7g`
B. The equivalent degree of freedom `f` of the mixture is 5
C. The equivalent vlaue of `gamma` is 1.56
D. If the internal energy of `He` sample is `100J` and that of the hydrogen sample is `200J`, then the internal energy of the mixture is `300J`