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Unformatted text preview: because their molecules are very far apart making it difficult for other molecules to collide with them. When molecules DO collide, they either give or take away energy. (http://mmem.spschools.org/2F.9798/HotandCold/styro.html) 4) Why are you calculating H rather than H o ? H calculates the heat transfer meanwhile H o calculates change of enthalpy that accompanies the formation of 1 mole of a substance. We needed to find the heat absorbed from the different substances that we measured....
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