Deteriminati entalpia de formare standard a enterolului,C2H5OH cunoscand reactia termochimica care are loc: C2H5OH+3O2g->2CO2g+3H2O1
^1H=-1365kj si entaliile
de formare standard.
^f H°CO2(g)=-393,5KJ/mol
^f H°H2O=-285,KJ/mol
.