write the equation
C2H6O+ 3O2 -->3H2O+ 2CO2
in on tone of co2, there is 22727.27273 moles.
divide by 2 to get the moles of ethanol (mole ration from balanced equation) and moles ethanol = 11363.63636.
times this by the delta H given in the equation...
11363.63636 X 1367 =15.53x10^6...