Combustion enthalpies

Substance Combustion enthalpy / kJmol-1
hydrogen 285.8
carbon 393.5
methane 890.4
ethane 1560
propane 2220
butane 2877
methanol 715
ethanol 1371
propan-1-ol 2010
butan-1-ol 2673
Ref: CRC Handbook of chemistry and physics - Edition 44