Consider a 1.2 g sample of N2(g) with CP = 3.5R (a) Calculate q, w, U, and H for a reversible adiabatic compression of 400 tor and 1 L at a final volume of 0.25 L. (b) Calculate the final pressure if the sample is cooled from ambient temperature and pressure up to 100 K by a reversible adiabatic expansion