Consider points A (1 atm, 10 L, 313 K), B (20 atm, 0.50 L, TB), C (1 atm, 0.50 L, TC) and D (20 atm, 10 L, TD) for an ideal gas with a constant volume molar heat capacity of CV,m= (3/2)R. (The temperatures TB , TC and TD are unknowns.) A and B are connected by an isotherm. a) Calculate the number of moles of gas. b) Calculate the work w done on the gas along the straight-line-segment paths ACB and ADB. c) Calculate the work w doneon the gas along the isotherm AB. d) Calculate the heat q and internal energy change Ufor the gas along each of the three paths