When methanol, ch3oh, is burned in the presence of oxygen gas, o2, a large amount of heat energy is released. for this reason, it is often used as a fuel in high performance racing cars. the combustion of methanol has the balanced, thermochemical equation ch3oh(g)+32o2(g)â¶co2(g)+2h2o(l)î´h =â764 kj how much methanol, in grams, must be burned to produce 541 kj of heat?