A multicylinder gasoline engine in an airplane, operating at 2.55 103 rev/min, t

Question

A multicylinder gasoline engine in an airplane, operating at 2.55 103 rev/min, takes in energy 7.92 103 J and exhausts 4.59 103 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 of the fuel is equal to 4.03 107 J/L?
  

(b) What is the mechanical power output of the engine? Ignore friction and express the answer in horsepower.
  

A Carnot engine has a power output of 170 kW. The engine operates between two reservoirs at 20

Explanation / Answer

(a)  2550 rev/min (60 min/ 1 hr) (7920 J / rev) (1 / (4.03

(a)  2550 rev/min (60 min/ 1 hr) (7920 J / rev) (1 / (4.03

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