... carbon atoms, there will be more carbon dioxide and water produced, this will require a large amount of energy to make the bonds in these compounds. Therefore if more carbon atoms are present in the alcohol, more energy will be released. I can predict that the two will be directly proportional. The purity of alcohol is a variable that will have the same effect on the energy produced as the number of carbon atoms present in the alcohol. A pure alcohol will have many more alcohol molecules in it than a less pure one. Having more alcohol molecules means having more carbon atoms, and as I've explained previously, having more carbon atoms in an alcohol will produce more energy. I can again predict that purity of alcohol and the energy produced by the alcohol will be directly proportional. The amount of alcohol (i.e. volume or mass), will, again, have a similar effect ...

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