Question: An engine absorbs 1.69 kJ from a hot reservoir at 277°C and expels 1.19 kJ to a cold reservoir at 27°C in each cycle.
(a) What is the engine's efficiency? %
(b) How much work is done by the engine in each cycle? J
(c) What is the power output of the engine if each cycle lasts 0.305 s? kW