A heat engine operates in a Carnot cycle between 78.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir. The duration of each cycle is 5.00 s. (a) What is the mechanical power output of this engine? ? kW (b) How much energy does it expel in each cycle by heat?  ?kJ

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Chapter4: The Second Law Of Thermodynamics
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Problem 77AP: A heat engine operates between two temperatures such that the working substance of the engine...
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A heat engine operates in a Carnot cycle between 78.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir. The duration of each cycle is 5.00 s.

(a) What is the mechanical power output of this engine?
? kW

(b) How much energy does it expel in each cycle by heat?
 ?kJ
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