Answer to Question #4851 in Physical Chemistry for vijay
what are the factors on which strength of hydrogen bond depends.is it stronger in water or hydrogen fluoride.
From the equation for the dipole-dipole interaction we see that the interaction energy depends on the square of the partial charges. So if we increase the polarization between the atoms involved in the hydrogen bond, the hydrogenbond should become much stronger. Fluorine is the most electronegative element (3.98on the Pauling scale) and because of this fluorine forms some of the strongest hydrogen bonds.