2. A system containing 2.0 mol of a perfect gas for which molar heat capacity Cv,m = 20 J mol-1 K-1 is taken through the cycle in the following diagram in the direction indicated by the arrows. Calculate Q, W, △U and AH in kJ for each segment (1→2; 2→3; 3→1) and for the cycle. Display your final answers in a Table like one below on your answer book. (30 points)