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Grade: 12th pass

                        

"Interaction energy is inversely proportional to r power 6 in london forces".What does it mean?

2 years ago

Answers : (1)

Arun
24742 Points
							

The molecules possessing permanent dipole show the dipole-dipole type of force. The ends of the dipoles in an atom generally possess a small “partial charge”. In the dipole-dipole forces, the interaction takes place between two neighbouring atoms or molecules that have a permanent dipole moment.

Since the dipole attraction is between two atoms in close vicinity to each other the force of attraction decreases with the increasing distance. The dipole-dipole force varies with movement. For stationary molecules, the dipole-dipole interaction energy is inversely proportional to the third power of r (1/r)  while for molecules showing movement in the form of rotation the interaction energy is 1/r ‘r’ here symbolizes the distance between the polar molecules.

2 years ago
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