A.the heat directly released by combustion
B.the heat released by cooling down all combustion products to the temperature before combustion
C.the latent heat of condensation of the water formed
D.all of these answers
A.the heat directly released by combustion
B.the heat released by cooling down all combustion products to the temperature before combustion
C.the latent heat of condensation of the water formed
D.all of these answers