ChemWritting1 - Omar Uribe Chem 1310 Fall 2008 Writing Assignment 1 The Stronger Force The great difference in the freezing points the compounds

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Omar Uribe Chem 1310 Fall 2008 Writing Assignment 1: The Stronger Force The great difference in the freezing points the compounds sodium chloride (NaCl) and ethanol (CH 3 CH 2 OH), 1074 K and 158.8 K respectively, can be explained in terms of intermolecular forces. The charge-charge attraction between the sodium and the chloride are so strong that it takes an extremely high temperature to melt the solid. The attraction forces between ethanol are not as strong as those in sodium chloride so it does not such a high temperature to melt it. Another important factor is that sodium chloride is structured as a crystal, which maximizes the attractive forces between the sodium chloride molecules making it require more energy (heat) to break the bonds between them. Similarly, intermolecular forces can explain differences in vapor pressure of two compounds. Dimethyl ether (CH
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This note was uploaded on 03/08/2010 for the course CHEMISTRY 1310 taught by Professor Williams during the Spring '10 term at Georgia Institute of Technology.

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