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Comparing the enthalpy changes of combustion of different alcohols: Aim: The aim of my investigation is to compare the enthalpy changes of combustion of two chosen alcohols from the given list displayed: Alcohol name Molecular formula Structural formula Methanol CH3OH Ethanol C2H5OH Propan-1-ol C3H7OH Butan-1-ol C4H9OH Propan-2-ol C3H7OH Butan-2-ol C4H9OH 2-methylpropan-1-ol C4H9OH Alcohols are derivates of alkanes; they have similar structures but varying functional groups. In alcohols one of the hydrogen atoms, which is generally attached to one of the central carbons, is replaced by an -OH group (Hydroxyl group). This variation largely determines the behaviour of the members of this homologous series in certain reactions. For example, Alcohols tend to have higher boiling points than the respective alkanes; this is because although the hydrogen bonds between the molecules are relatively weak, they are stronger than other attractive forces between covalent molecules. I have chosen to compare the enthalpy change of combustion of Methanol, Ethanol Propan-1-ol and Butan-1-ol. This is because they are fairly commonly used, and a larger set of information...

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