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Investigating the energy released from burning fuels
Member rating: No Rating | Words: | Submitted: Sun Dec 15 2002
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Investigating the energy released from burning fuels Aim: Does the size of the alcohol molecule affect the amount of energy released when burnt? Combustion Combustion is the scientific term for burning The word equation for combustion is fuel + oxygen ? carbon dioxide + water + heat Prediction I think the larger the molecule in the alcohol the more energy will be released. To test this I will be doing an experiment that will give off an exothermic reaction, which mean it releases heat. I will then see which alcohol gives of most heat and therefore releases more energy, the alcohol with the larger molecules or the one with the smaller ones. In the experiment the fuels I will use are Methanol (CH3OH) Ethanol (C2H5OH) Propanol (C3H7OH) Butanol (C4H9OH). The symbol equations for these when burning are: Methanol: CH3OH + 1.5 O2 ? CO2 + 2H2O Ethanol: C2H5OH + 3O2 ? 2CO2 + 3H2O Propanol: C3H7OH + 4.5O2...
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