Calculate the cycle work if the relationship PV^(1)=C holds from transitions 1->2 and 3->4? (Drawing the points 1. v, p=1 m^3, 4 kPa 2. v, p=4 m^3, 1 kPa 3. v, p=4 m^3, 2 kPa 4. v, p=1 m^3, 8 kPa)