Chemistry Homework Solutions
#35158
Automobile fuel economy in the US. Calculate fuel consumption savings
Petroleum consumption in the US in 1990 supplied about 35.9E15 kJ of energy. Of this quantity, about 15.3E15 kJ was supplied by foreign sources. The transportation sector is the major user of petroleum, accounting for 23.2E15 kJ of consumption. Overall automobile fuel economy in the US was about 20 miles per gallon in 1990. Automobile efficiencies in Europe and Japan were about 26 mpg. If the US had averaged 26 mpg in 1990, how much less petroleum (expressed as kJ) would have been imported?
This solution calculates savings in automobile fuel economy in the US by changing average mpg.
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