J.R. S. answered 10/14/22
Ph.D. University Professor with 10+ years Tutoring Experience
2CH3OH + 3O2 ==> 2CO2 + 4H2O + 1452kJ
The reaction, as written, is for 2 moles of methanol (CH3OH)
Therefore, the ∆Hcombustion per mole = 1452 kJ / 2 mol = 726 kJ / mole