Answer :
Final answer:
The energy content of gasoline is typically measured in Btu, with one gallon containing approximately 114,000 Btu. When converted to kWh, this is roughly 33.6 kWh. However, given the options, the closest answer is 37.9 kWh per gallon.
Explanation:
The energy content of gasoline, also referred to as heat of combustion, is a measure of the total energy that is released when gasoline is completely burned. This is traditionally measured in British thermal units (Btu), with one gallon of gasoline approximately containing about 114,000 Btu. However, we want the energy content in kilowatt-hours (kWh), a unit of energy commonly used in electricity. To convert Btu to kWh, we should know that 1 Btu is approximately 0.000293 kWh. Therefore, the energy content of one gallon of gasoline is approximately 33.6 kWh (i.e., 114,000 Btu * 0.000293 kWh/Btu). However, as none of the options given closely matches the correct answer, the closest and therefore the best choice given is 37.9 kWh/gallon.
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