2) 2.5 mol of an ideal gas at 20 oC under 20 atm pressure, was expanded up to 5 atm pressure via; (a) adiabatic reversible and (b) adiabatic irreversible process. Calculate the values of w, q, ΔU, ΔH for each process. (Cv = 5 cal / mol. K ≈ 5/2 R; R ≈ 2 cal / mol. K) (Please find the desired values by making the corresponding derivations