An engine absorbs 1.69 kJ from a hot reservoir at 277 °C and expels 1.24 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 0.298 s?
kW