Q: The thermochemical equation for the reaction of methane combustion CH4(g)+2O2(g)→CO2(g)+2H2O(l) + 890.4 kJ is known. What amount of methane substance is consumed in the release of 89.6 kJ of heat?
The thermochemical equation for the reaction of methane combustion CH4(g)+2O2(g)→CO2(g)+2H2O(l) + 890.4 kJ is known. What amount of methane substance is consumed in the release of 89.6 kJ of heat?
Flexi Says: When methane gas is combusted, heat is released, making the reaction exothermic. Specifically, the combustion of 1 mole of methane releases 890.4 kilojoules of heat energy. For the release of 89.6 kJ of energy, 89.6/890.4 = 0.1 moles of methane is consumed.