An investigation into the heat of combustion of five alcohols :: GCSE Chemistry Coursework Investigation

Alcohols An investigation into the screw up of burning at the stake of five alcoholsPlanning========Introduction------------I am trying to train the heat of combustion for the first fivealcohols, which argon ethanol, propanol, butanol, pentanol and hexanol.I am trying to determine whether the amount of Carbon atoms on themolecule affects the heat elan vital given up out by the molecule whenburned. I view that as the size of the molecule increases and thechain of carbons grows longer, then the heat energy given out demonstrateamentincrease. I think that this is because when the molecule bonds arebroken then they take in energy and then when the bonds are being madethey give out energy. In a blown-up molecule, more bonds are made so moreenergy is given out.Apparatus--------- Clamp stand Clamp Copper calorimeter Spirit burner Matches Thermometer regulation Metal safety tray Top pan balance (digital scales) Measuring cylinderMethod------I impart need to collect wholly of t he in a higher place apparatus and then put ittogether like in the diagram below. I will weigh the alcohol I will beburning and then put it under the copper color calorimeter. I will use ameasuring cylinder to measure out 100cm3 into the copper calorimeter.I will light my Flame, which will be 5cm under the calorimeter. I willuse my thermometer to determine the temperature and then go up to 60cbecause that is how practically I will change the temperature by. When thewater has go to 60c I will then put the hat on the spirit burnerto extinguish the flame and then I will weigh the spirit burner again.By taking the new weight from the real weight I enkindle then work outhow much of the alcohol has been used. I will then repeat thisexperiment other four convictions with the other alcohols until I havedone all five. I will repeat this twice to gain another notice of resultsso I can compare them and identify trends and patterns consistent inboth sets of results.How I will draw in my experiment a sane test-----------------------------------------There is not really that much I can do to help make this experiment afair test but I will cool the copper calorimeter completely kill byrunning it under cold water for a a couple of(prenominal) minutes so that the waterdoesnt get warmed up by being in contact with it. I will also makesure that I have 100cm3 of water each time in the calorimeter. Thetemperature will always go up to 60 each time as well. I will alsokeep the height of the calorimeter at 5cm each time.