`2` mole ideal He gas and `3` mole ideal `H_(2)` gas at constant volume find out `C_(v)` of mixture

For two mole of an ideal gas :

For two mole of an ideal gas :

For two mole of an ideal gas:

For one mole of an ideal gas (C_(p) and C_(v) are molar heat capacities at constant presure and constant volume respectively)

One mole of an ideal monoatomic gas (gamma = (5)/(3)) is mixed with one mole of a diatomic gas (gamma=(7)/(5)) . ( gamma denotes the ratio of specific heat at constant pressure, to that at constant volume) find gamma for the mixture?

One mole of an ideal monoatomic gas is mixed with one mole of an ideal diatomic gas. The molar specific heat of the mixture at constant volume is (in Calories )

One mole of an ideal monoatomic gas is mixed with one mole of an ideal diatomic gas. The molar specific heat of the mixture at constant volume is (in Calories )

A gas mixture contain one mole He gas and one mole O _(2) gas. Find the ratio of specific heat at constant pressure to that at constant volume of the gasseous mixture -