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Comparing the enthalpy changes of combustion of different alcohols.
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Rebecca Johnson Mr Smith Comparing the enthalpy changes of combustion of different alcohols I am going to investigate the enthalpy change of combustion of different alcohols. This will be the 'enthalpy change when one mole of substance is burned completely in oxygen under stated conditions.' I will compare the alcohols by seeing how the number of carbon atoms an alcohol contains affects the enthalpy change of combustion. During the experiment I will take two measurements, which are the mass of the alcohols burned, and the temperature increase. I will then use these to work out the overall energy transferred, which will give me the enthalpy change. I will then compare the enthalpy changes for each alcohol. I will do this by using the equation, Energy transferred to water by burning fuel (Q) = mass of water (m) x temperature rise ( t) x 4.2J (Q) = The energy transferred to the water...
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