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Propanol Investigation  

Member rating: 3 out of 10 stars (1 vote) | Words: | Submitted: Thu Jul 11 2002

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Prediction & Hypothesis I predict that Propanol will produce the most heat on burning, as its energy out put is higher then any of the other Alcohols. I concluded by calculating the theoretical values of burning for each of the Alcohols. These were my calculations.> Methanol Word Equation Methanol + oxygen carbon dioxide + water Molecular Equation 2CH(3)OH + 3O(2) 2CO(2) + 4H(2)O Structural Equation H | H-C-O-H O=O H-O-H | O=C=O H + + H-O-H H O=O H-O-H | H-C-O-H O=C=O H-O-H | O=O H Bond Breaking Values Number Of Bonds to be Broken Type of Bond Relative amount of energy Needed per bond in kJ Total amount of energy needed in kJ 6 H-C 413 2478 2 C-O 358 716 2 O-H 464 928 3 O=O 498 1494 Total amount of energy needed to break bonds in kJ +5616 Bond Creating Values Number Of Bonds to be Created Type of Bond Relative amount of energy Needed per bond in kJ Total amount of energy needed in kJ 4 O=C 805 3220 8 H-O 464 3712 Total amount of energy released Creating bonds in kJ - 6932 5616 6932 - -1316 The reaction is exothermic by. 1316 kJ> Ethanol Word Equation Ethanol + oxygen carbon dioxide + water Molecular Equation C...

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