Solution: Ethanol (C2H5OH) and gasoline (assumed to be all
Chapter 6, Problem 6.93(choose chapter or problem)
Ethanol (C2H5OH) and gasoline (assumed to be all octane, C8H18) are both used as automobile fuel. If gasoline is selling for $4.50/gal, what would the price of ethanol have to be in order to provide the same amount of heat per dollar? The density and DH8f of octane are 0.7025 g/mL and 2249.9 kJ/mol and of ethanol are 0.7894 g/mL and 2277.0 kJ/mol, respectively. 1 gal 5 3.785 L.
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