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To Find Out How Much Energy Is Given Out by Methanol, Ethanol,Propanol, Pentanol and Butanol.
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James McMullen Science Chemistry coursework Burning Fuels Aim The aim is to find out how much energy is given out in methanol, ethanol, propanol, pentanol and butanol. Prediction I predict that pentanol will give out the most energy because it has the most carbon atoms. I think the more carbon atoms there are, the more energy is required to break the bonds. Methanol - CH3OH CH3OH 1/2O2 CO2 + 2H2O 3 x C - H 3 x 410 = 1230 1 x C - O 1 x 360 = 360 1 x O - H 1 x 460 = 460 1 1/2 X O=O 1 1/2 x 496 = 744 + 2794kj 2 x C=O 2 x 740 = 1480 4 x O - H 4 x 460 = 1840 + 3320 2794 - 3320 = -526kj Ethanol - C2H5OH C2H5OH + 3O2 2CO2 + 3H2O 1 x C - C 1 x 350 = 350 5 x C - H 5 x 410 = 2050 1 x C - O...
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