Question

Any time energy is converted from one form to another, some of it is lost. The...

Any time energy is converted from one form to another, some of it is lost. The efficiency of a conversion process is defined as the percentage of the source energy that is maintained in the output.

Suppose that you drive 10,000 miles per year in your car, which has a gasoline engine that can cover 20 miles using 1 gallon of gasoline.

Conversion Process

Efficiency

Engine (fuel to piston movement)

15%

Mechanical (pistons to wheels)

70%

How much would you save by just reducing your driving by 10%?

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