(b) A reversible heat engine takes 80 kW of heat from a source at a temperature of $768^{\circ} \mathrm{C}$ and produces 35 kW of work out put. If the engine is producing power at its maximum efficiency, determine the sink temperature and the heat rejected to the sink.
Explanation
To determine the sink temperature and the heat rejected to the sink, we can use the Carnot efficiency equation and the first law of thermodynamics.
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