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To See If the Size of the Molecule Affects the Heat of Combustion
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Aim: to see if the size of the molecule affects the heat of combustion Hypothesis: I predict that the more bonds there are holding the carbon, oxygen and hydrogen atoms together, the more energy will be required to break them apart. To be able to make this statement we can break down each alcohol, (methanol, ethanol, Propanol, butanol and pentanol) and work out the amount of energy required to break them. From this we can see a larger molecule, such as pentanol, takes more energy to break its bonds, 5380J. Compared to a smaller molecule, methanol, which requires less energy to do so, 2100J. I can thus come to predict that the longer the molecular structure in the alcohol, the more energy it will take to remove the bonds. So when I come to predicting results I can safely say that the larger molecule, in my case hexanol, will evolve more energy than...
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