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Experiment to Measure the Heat of Combustion of Butanol Aim: To find out the heat of combustion of a specific alcohol (in this case, Butanol). Combustion is the energy released when 1 mole of a fuel burns in pure oxygen. Background Knowledge: An exothermic reaction gives out heat, because chemical energy is converted into heat energy. It is opposite to an endothermic reaction - one that takes in heat. When we burn a fuel, in this case Butanol, it is called combustion. Combustion usually takes place in the air when the fuel combines with oxygen. However, substances can be burned in other gases. Combustion does not usually happen spontaneously but is triggered by heat. Variables: There will be two independent variables, and these will be, that the temperature will be allowed to rise roughly 30ºC, and that the type of alcohol used in each case will differ. There will also be a dependant variable...

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