Is the London dispersion force greater between molecules of hydrogen sulfide (H2S) or molecules of water (H2O)?

1 Answer
Dec 15, 2015

London dispersion forces are greater between molecules of #"H"_2"S"#.


The strength of London dispersion forces depends on the number of electrons creating the temporary dipoles.

A sulfur atom contains more electrons than an oxygen atom does.

Therefore, #"H"_2"S"# will have stronger London dispersion forces.