The thermal efficiency of a Carnot heat engine is 53%. If the high temperature reservoir is at 457 C, what is the temperature of the heat sink? If the heat engine receives 200 kJ of heat, how much heat is rejected to the low temperature reservoir? Determine the entropy change in cycle's working fluid during the high temperature heat transfer process. What will be the entropy change in the cycle's working fluid during the low temperature heat transfer process? Explain. What is the net work for the heat engine? Sketch the cycle process on a T-s diagram includes all known properties.