london - Review of Van Der Waals Forces These...

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Review of Van Der Waals Forces These intermolecular forces are weaker than any ionic or covalent bond. They are at most 10% of a covalent or ionic bond strength. 1. London forces the electron cloud of a molecule is distorted and polarized. This may induce a similar distortion in a neighboring molecule. The attraction of these temporary induced dipoles is the london force. All molecules have london forces. The relative strength of intermolecular forces can be estimated by comparing boiling points of the compounds. In boiling a liquid molecules in contact must be changed to molecules widely separated. This requires that enough energy be put into the system to break the intermolecular forces holding the molecules in contact in the liquid phase. Therefore by comparing the bp of a homologous series of hydrocarbons we will get an idea of the relative strength of the intermolecular forces between the molecules. CMPD
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This note was uploaded on 11/16/2011 for the course CHM 2045 taught by Professor Mitchell during the Fall '07 term at University of Florida.

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london - Review of Van Der Waals Forces These...

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