How many moles of C5H12 (pentane) must be reacted according to the following balanced chemical reaction to transfer -297.6 kj of heat? C5H12(l)+8O2(g)→5CO2(g)+6H2O(g) ∆H=-3508.8 kj

Answer 1

The balanced equation indicates that one mole of pentane when combusted will result in the production of 3508.8 kJ of heat. To determine the number of moles of pentane to produce only 297.6 kJ, use the following conversion: 1 mole pentane / -3508.8 kJ x -297.6 kJ. to get 0.08482 moles pentane.