3. A multicylinder gasoline engine in an airplane, operating at 2500 rev/min, takes inenergy 7.89 x 105 J and exhausts 4.58 × 105 J for each revolution of the crankshaft.(a) How many liters of fuel does it consume in 1.00 h of operation if the combustionof the fuel provides a heat of 4.03 x 107 J/L?(b) What is the mechanical power output of the engine? Ignore friction.(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?

Given Frequency of engine, f=2500rev/min Intake energy, Qi=7.89×105J Exhaust energy, Qe=4.58×105J a.…

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