An inventor claims that the heat engine in Figure 2 receives 800 kJ per cycle from a source at 1100 K, delivers 450 kJ of net work and rejects the rest to the surroundings at 300 K. Determine (a) the maximum (Carnot) efficiency possible between these temperatures (in %), (b) the entropy generated per cycle by the source, engine and surroundings together (in kJ/K), and (c) the irreversibility (lost work) per cycle (in kJ), taking the surroundings at T_{0} = 300 K.