Heat Engines and Efficiency
3. A heat engine idealized as operating on the Carnot cycle is supplied with heat at the boiling point of water (212°F), and it rejects heat at the freezing point of water (32° F). If the engine produces 100 hp of mechanical work,
(a) Determine the efficiency of the engine.
(b) Calculate in units of Btu the amount of heat that must be supplied to the engine each hour.