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The LDF is named after the German physicist Fritz London. How does surface area affect the Van der Waals interactions? References. 100% Upvoted. Dispersion is just the forces due to instantaneous induced dipole moments. London dispersion forces van der waals forces. Summary - van der Waals Forces The van der Waals force is the sum of three different components of the electrostatic interaction between molecules: orientation, induction, and dispersion. London dispersion forces are a type of van derwaal’s forces. They arise because of short-lived induced dipole moments which occur even in non-polar molecules. You've reached the end of your free preview. Dispersion forces (Van der Waals forces): Dispersion forces are very weak forces of attraction. Dispersion forces (Van der Waals forces): Dispersion forces are very weak forces of attraction. London dispersion forces are stronger in those molecules that are not compact, but long chains of elements. Van der Waals vs Hydrogen Bonds . In general, all the intermolecular forces of attraction between molecules are called Van der Waals forces. As you can imagine this is an extremely weak force much weaker. In the case of e.g. How do Van der Waals forces affect the boiling point of helium? The origin of van der Waals dispersion forces. London dispersion forces vs van der waals forces. Van der Waals forces. London dispersion forces are a type of force acting between atoms and molecules. There are two kinds of Van der Waals forces: weak London Dispersion Forces and … This results in a slightly negative (\$$\\delta-\$$) and slightly positive \$$(\\delta+)\$$ charge on either side of the atom. Dispersion force on the other hand london forces is the case where one or both of the dipoles or multipoles are transient that may arise entirely from continual fluctuations in electron densities. 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