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The Heat of Combustion of alcohol Hypothesis When alcohol is burned, the energy that is released can be transferred to the water in a calorimeter. The temperature rise can be used to calculate the amount of energy transferred. The structures of different alcohols are different from each other. They are a family of organic compounds. Alcohols are very flammable substances and burn well in the presence of oxygen, forming carbon dioxide and water vapour, and giving out plenty of energy. Example Ethanol C2H5OH (l) + 3O2 (g) 2CO2 (g) + 3H2O (g) + heat The different compounds follow a general pattern for the structure of CnH2n+2. The larger structure means the longer the chain and thus a higher the boiling point. This means that more heat is needed in order to break their bonds for those further down the chain of reactions. Aim Investigate which alcohol gives off the most energy when burnt in a spirit lamp. Prediction I predict...

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