Determining intermolecular forces

[205192823]

How do you determine which intermolecular force is involved in a molecule?

[Mashkinadze_1D]

This would be based primarily off memorization and then identification. The way we can see this is induced-dipole-induced-dipole in every aspect of every molecule due to the slight polarization in electron cloud. The next one we can look at is dipole-dipole which occurs any time that there is a significant enough difference in the electronegativity of the two atoms being bonded and therefore a slight change in charge. The following would be H-bonding which is simply a form of dipole-dipole bonding that occurs when hydrogen is bonded to either F, O, or N. Lastly, there is ionic forces which occur with a cation and anion due to the difference in charge.

[Kassidy Ford 1I]

if it is nonpolar then it will only be affected by dispersion forces. If it is non-polar it will be affected by dipole-dipole forces. if there are H bonded to N,O,F then it will experience H bonding.

[Deepika Reddy 1A]

Everything has dispersion forces. Nonpolar molecules can only have london dispersion intermolecular forces. Polar molecules also have dipole-dipole in addition to london dispersion forces. You can tell the type of intermolecular force based on the charges on the substance, either full charge, partial charge, or no charge.

[Anika Chakrabarti 1A]

There are also dipole-induced dipole forces, which occur between a polar and a nonpolar molecule.