You build a silly type of thermal engine that only uses isobaric and isochoric processes. it has processed at 101.3kpa and 303.9kpa, and 0.01m^3 and 0.05m^3. when the system is at its lowest pressure and volume it has a temperature of 20 c. a) what is the total work done in a cycle? b) what is the hear added in a cycle? c) what is the change in internal energy in a cycle? d) on a pv diagram note the temperature at each corner of the process.