Carbon dioxide, (CO2) gas, intially at 70 degrees F, 15 lbf/in^2 and 1 ft^3, is compressed in a piston cyclinder assembly. During the process and specfic volume are related by pv^1.2=constant. The amount of energy transfer to the gas by work is 45 Btu/lb of CO2. Determine the final temperature and heat transfer in Btu/lb gas.