Be sure to answer all parts.
Three of the reactions that occur when the paraffin of a candle (typical formula C 21H44) burns are as follows:
(1) Complete combustion forms CO2 and water vapor.
(2) Incomplete combustion forms CO and water vapor.
(3) Some wax is oxidized to elemental C (soot) and water vapor.
Part 1 out of 3
(a) Find ΔH°combustion of each reaction for 1 mol of C21H44 (ΔH°f of C21H44 = -476 kJ/mol: use graphite for elemental carbon).
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