One mole of a mono-atomic ideal gas is mixed with one mole of a diatomic ideal gas. The molar specific heat of the mixture at constant volume is ……

Options

A. 8
B. `3/2R`
C. 2R
D. 2.5 R

Explanation

( c) `(C_(V))_(mix)=(mu_(1)C_(V_(1))+mu_(2)C_(V_(2)))/(mu_(1)+mu_(2))=(1xx(3)/(2)R+1xx(5)/(2)R)/(1+1)=2R`
`((C_(V))_("mono")=(3)/(2)R,(C_(V))_(di)=(5)/(2)R)`