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Frances Hunt Comparing the enthalpy changes of combustion of different alcohols I am going to investigate the difference in enthalpy changes for the combustion of different alcohols. I will attempt to find out how the number of carbon atoms an alcohol contains effects the enthalpy change during complete combustion. To do this I will burn liquid fuel and arrange for as much of the energy as practically possible to be transferred to the water through heating. I will then use the knowledge that 4.2J of energy are required to raise the temperature of 1g of water by 1ºc. The equipment I will require is listed below: Equipment and materials Spirit burner containing different alcohols A range of 5 alcohols 500ml Copper calorimeter Clamp and clamp stand 250cm measuring cylinder Electronic balance Heat proof mat Eye protection 0 -110ºc Thermometer Draught shielding 200ml cold water I am going to use a range of alcohols, I will use the first five alcohols as they have very few isomers....

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