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A Carnot engine works between two heat reservoirs at temperaturesTh = 400 K and Tc = 250 K.(a) What is its efficiency?_________%(b) If it absorbs 75 J from the hot reservoir during each cycle,how much work does it do?_________J(c) How much heat does it give off during each cycle?_________J(d) What is the COP of this engine when it works as a refrigeratorbetween the same two reservoirs?
A Carnot engine operates between the temperatures 330 K and 290 K.
(a) How much heat must be given to the engine to produce 3500 J of work?
(b) How much heat is discarded to the cold reservoir as this work is done?
A Carnot engine is operated between a hot and a cold reservoir. Thetemperature difference between the two reservoirs is 334 degreesCelsius. If the efficiency of this ideal engine is 27%, find thetemperature of the cold reservoir in degrees Celsius.