Google - For N2(g), CP,m is nearly constant at 3.5R  29.1 J/(mol K) for temperatures in the range?

... 100 to 400 K and low or moderate pressures. (a) Calculate q, w, U, and H for the reversible adiabatic compression of 1.12 g of N2(g) from 400 torr and 1000 cm3 to a final volume of 250 cm3. Assume perfect-gas behavior