Question

How do you determine dipole dipole interaction?

Answer 1

Dipole-dipole interaction can be determined by
the size of electronegativity contrast mirrors the level of extremity .

And ,

More prominent the distinction in electronegativities of particles framing the bonds , more prominent will be charge division and consequently more noteworthy will be the extremity of atom results in arrangement of dipole power of fascination.

Answer 2

The Force of the attraction between two polar molecules or dipoles is called as the Keesom Force.

For example, The Force of the attraction between Ammonia and Hydrogen Chloride is Dipole-Dipole force or Keesom Force.

If this Force of the attraction is determined between two molecules then result is determine.

Now, to determine this force we must have the knowledge of the compounds which we are having. If the compounds which we have are polar in nature, means both are polar and have some dipole moment, then there will be Keesom force.

By knowing the name of the compounds, we can determine the Dipole-Dipole Interaction.

Another method is experimental. We already have the knowledge hat Keesom force is greater than London Force, and we know there limits also. Thus, knowing the magnitude of the force from experiment, we can determine the dipole-dipole interaction.

Hope it helps.