A mixture of ideal gases has 2 moles of He, 4 moles of oxygen and 1 mole of ozone at absolute temperature T. The internal energy of mixture is

3 mole of O2 mixed with 5 moles of Argon at temperature T. Find total internal energy of system

3 mole of O2 mixed with 5 moles of Argon at temperature T. Find total internal energy of system

A gas mixture consists of 2 moles of oxygen and 4 moles of argon at temperature T. Neglecting all vibrational modes, the total internal energy of the system is