Assume that gasoline is made of octane $($C$8$H$18).$ What produces more heat: the combustion of pure gasoline or the combustion of a mixture of gasoline and ethanol $($CH$3$CH$2$OH$)?$

Hint: think about how much heat is produced by combusting $1$ liter of pure octane $($doctane$=0\mathrm{.}703$g$/$cm$3$

$)$ versus the energy produced by combusting $1$ liter of pure ethanol$($dethanol$=0\mathrm{.}789$g$/$cm$3$

$)$ When solving use bond energies to determine the amount of heat produced in the reactions