A Carnot heat engine using 1 kg of air has the following conditions: heat addition beginning at 15 MPa and 1200 K and continuing until the pressure is 10 MPa; isothermal compression from 100kPa and 300 K, continuing until the pressure is 150 kPa. Assuming constant specific heats at 750K Determine
a) the heat transfer into the cycle in KJ;
b) the heat transfer from the cycle in KJ;
c) the work for each of the processes in KJ; d) the cycle thermal efficiency.