The reason behind it is that I atoms have more electrons than the Cl atoms and that’s the reason behind the greater dispersion forces.For example, we can say that HCl has a lower boiling point than HI but HCl has a more dipole moment than the HI.Dispersion forces are always present whether the dipole moment is present or not.The stronger the dispersion force in between solute molecules and solvent molecules, the greater solubility in between the solvent and solute.

So, we can say that more energy is required to separate the two molecules which are connected by dispersion forces. So, the stronger dispersion forces create more energy. Remember that, “ Dispersion forces are inversely proportional to the sixth power of the distance between interacting atoms or molecules”.ĭispersion forces are framed in liquid states.The reason behind that is they are connected because of electronegativity. Covalent bonds are framed based on the equal sharing electrons so we can say that there are no charges available that are still considered as polar dispersion forces.Where polar dispersion forces are created when both molecules have some partial charge but in non-polar dispersion forces, there are no charges on both the molecules. Based on the polarity, dispersion forces are also categorized into two types called polar dispersion forces and non-polar dispersion forces.

Metallic bonds and dispersio force