. A container has n moles of a monoatomic gas and n2 moles of a diatomic gas. The molar specific heat capacity at constant volume (Cv) of the mixture is
A container has n moles of a monoatomic gas and n2 moles of a diatomic gas.The molar specific heat capacity at constant volume (Cv) of the mixture is found to be 2R.then the ratio n1/n2 is