Air is a mixture of biatomic ideal gas, mostly Nitrogen (N2 79% in volume) and Oxygen (O2 21% in volume).

Air is a mixture of biatomic ideal gas, mostly Nitrogen (N2 79% in volume) and Oxygen (O2 21% in volume). Based on the formulation of the equation of state for a mixture of gases determine the mean molecular weight of the mixture and the gas constant (R) for air. Show all steps please