Question: A multicylinder gasoline engine in an airplane, operating at 2 500 rev/min, takes in energy 7.89 X 103 J and exhausts 4.58 X 103 J

A multicylinder gasoline engine in an airplane, operating at 2 500 rev/min, takes in energy 7.89 X 103 J and exhausts 4.58 X 103 J for each revolution of the crankshaft.
(a) How many liters of fuel does it consume in 1.00 h of operation if the heat of combustion is 4.03 X 107 J/L?
(b) What is the mechanical power output of the engine? Ignore friction and express the answer in horsepower.
(c) What is the torque exerted by the crankshaft on the load?
(d) What power must the exhaust and cooling system transfer out of the engine?

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a The input energy each hour is 789 10 Jrevolution2500 revmin implying fuel input 118x10 Jh 60 m... View full answer

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