Asked Jan 20, 2020

What kinds of intermolecular forces are involved in solution formation?


Expert Answer

Step 1

The intermolecular forces that are involved in solution formation are to be explained.

Step 2

Intermolecular interactions are the forces that act between the neighbouring molecules.

In general, there are four types of intermolecular forces-

London-dispersion forces: It is the weakest force that exists between all the molecules. It is temporary attractive force that results due to movement of electrons.

Dipole-dipole interactions: The polar molecules are dipoles i.e., one end has a negative charge while the other end has positive charge. When one dipole comes in vicinity of another dipole, the negative end of one dipole attracts the positive end of the other dipole and vice-versa.

Hydrogen bonding: when the hydrogen atom in a molecule is bonded to a highly electronegative atom (O, N or F), then this hydrogen atom forms a hydrogen bond with another electronegative atom with lone pairs.

Ionic-forces: This type of interaction occurs between two ions or ionic compounds.

Step 3

Now, formation of solution involves two steps-

  1. Dissolution – Breaking of solute-solute binding forces and solvent-solvent bi...

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