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12RS Enthalpy of combustion planning Aim: To work out the enthalpy change of combustion of alcohols To work out the enthalpy change of combustion of the alcohols, the energy output must be measured. This simplest way of doing this accurately is to use the thermal energy of combustion to raise the temperature of a substance with a known specific heat capacity. The rise in temperature of this substance can then used to work out the thermal energy used to do this work. Basic plan Apparatus Metal calorimeter Thermometer measures to 0.1 oc Clamp stand 100cm3 measuring cylinder that measures 1cm3 Alcohol with spirit burner Heat proof mat Scales that measure to two decimal places Wooden splint For safety To begin with prepare a table remove all items of stationary from the surface and place them in bags, leaving only the paper and pen that are to be used to record the results. Remove bags from under the desks and place them in the designated positions. With the exception...

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