Intermolecular forces

IB Chemistry: Intermolecular forces

1. What’s in a name?Clearly there are attractive forces between all molecules and even between individual noble gas atoms. Helium has an extremely low melting point (-272 oC) but nevertheless it does freeze so some force must be holding helium atoms together below this temperature. Most books explain this by referring to the formation of ‘temporary dipoles’. Many give quite elaborate diagrams to show how at any...


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