5 Required Informatlon Pure gasoline has an energy density o

5 Required Informatlon Pure gasoline has an energy density of 115,600 BTU per gallon, while ethanol has an energy density of 75.670 BTU per gallon. Gasoline costs $2.5 per gallon. eBook What would the cost of pure ethanol have to be in order for the energy costs of the two fuels to break even? Hint The cost of pure ethanol is determined to be $

Solution

Energy density

Cost per gallon

Pure gasoline

115600

2.5

Ethanol

75670

1.64

Ethanol to pure gasoline

0.65

Since Ethanol is 65 per cent efficient as pure gasoline, so price equals 0.65*2.5 = $1.64

	Energy density	Cost per gallon
Pure gasoline	115600	2.5
Ethanol	75670	1.64
Ethanol to pure gasoline	0.65