a.) A particular car engine operates between temperatures of 400°C (inside the cylinders of the engine)...
a.) A particular car engine operates between temperatures of
400°C (inside the cylinders of the engine) and 20°C (the
temperature of the surroundings).
Given these two temperatures, what is the maximum possible
efficiency the car can have? (Note that actual car engine
efficiencies are in the 20-25% range.)
_______ %
b.) A particular car engine operates between temperatures of
400°C (inside the cylinders of the engine) and 20°C (the
temperature of the surroundings).
If the car was somehow able to operate at its maximum efficiency,
determine how much heat must be obtained by burning fuel in the
car’s engine to accelerate a 1500 kg car from rest to a speed of
100 km/h (neglect resistive forces). Note that a number like
1.23x10^9 can be entered as 1.23e9
_______ J
Homework Answers
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a.) A particular car engine operates between temperatures of
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