Enthalpy of combustion
It is always an exothermic reaction.
It is the heat released in the combustion reaction of 1 mol of a substance in the presence of oxygen gas O2(g)
Complete combustion: more amount of oxygen. Forms carbon dioxide and water.
Incomplete Combustion: less amount of oxygen. Produces less amount of energy. Forms more waste like carbon monoxide (CO) and water (H2O).
What is the value of the enthalpy of combustion of benzene (C6H6)? Dice:
Table of ΔH ° comb of some substances
ΔH ° comb (kcal / mol)
H3C - CH2 - OH (l)
H3C - COOH (1)