Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data in the following table compare the standard enthalpy of combustion per gram of methanol with the enthalpy of combustion per gram of gasoline. Gasoline is actually a mixture of compounds, but assume for this problem that gasoline is pure liquid octane (C8H18).

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  1. Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data in the following table compare the standard enthalpy of combustion per gram of methanol with the enthalpy of combustion per gram of gasoline. Gasoline is actually a mixture of compounds, but assume for this problem that gasoline is pure liquid octane (C8H18).

Compound

ΔHºF

CH3OH

-239 kJ/mol

C8H18

-269 kJ/mol

H2O

-286 kJ/mol

CO2

-394 kJ/mol

CO

-111 kJ/mol

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