Heat in the amount of 150 kJ is transferred directly from a hot reservoir at TH =

Question:

Heat in the amount of 150 kJ is transferred directly from a hot reservoir at TH = 550 K to two cooler reservoirs at T1 = 350 K and 7> = 250 K. The surroundings temperature is T( = 300 K. If the heal transferred to the reservoir at T1 is half that transferred to the reservoir at T2 calculate:
(a) The entropy generation in kJ K-1.
(b) The lost work.
How could the process the made reversible?