According to this page (https://www.chem.purdue.edu/gchelp/liquids/inddip2.html), the permanent dipole of a polar molecule can induce a dipole in a non-polar molecule, and thus, generate an attractive intermolecular force. How does the strength of such a force compare to the London dispersion force between a transient dipole of one molecule and the induced dipole of another?

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    $\begingroup$ Think of it this way: what's a transient dipole? Is it stronger than a permanent one? $\endgroup$ Aug 6 at 0:00
  • $\begingroup$ Thanks Ivan. I suppose it would be an exceedingly rare and fleeting event for a transient dipole to be stronger than a permanent one. Thus, London dispersion forces must be substantially weaker than forces between permanent dipole and induced dipole. $\endgroup$ 2 days ago
  • $\begingroup$ See, you knew it yourself all along. $\endgroup$ 2 days ago


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