Question

The octane number of gasoline is based on a comparison of the gasoline’s behavior with that 2,2,4-trimethylpentane, C8H18(ℓ), which is arbitrarily assigned an octane number of 100. the standard enthalpy of combustion of this compound is – 5456.6 kJ/mol.

Answer 1

CH3C(CH3)2CH2CH(CH3)CH3 +25/2 O2 = 8CO2 + 9H2O H= -5456.6 KJ/MOL