Ethanol (C2H5OH) and gasoline (assumed to be all octane,
Chapter 10, Problem 96AP(choose chapter or problem)
Problem 96AP
Ethanol (C2H5OH) and gasoline (assumed to be all octane, C8H18) are both used as automobile fuel. If gasoline is selling for $2.79/gal, what would the price of ethanol have to be in order to provide the same amount of heat per dollar? The density and of octane are 0.7025 g/mL and –249.9 kJ/mol, respectively, and of ethanol are 0.7894 g/mL and –277.0 kJ/mol. respectively (I gal = 3.785 L).
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