what is week wandrawal force
Answers
Hello there,
Van der Waals forces is the attraction of intermolecular forces between molecules.
(Or) The forces of attraction between the layers of a molecule is called as Van der Waals forces.
There are two kinds of Van der Waals forces:
1) Weak London Dispersion Forces
2) Stronger dipole-dipole forces.
The force is temporary force.
1) They are very weak as they are not because of any strong relation like electromagnetic attraction.
They are just the attractive forces which exists because of their closeness to each other.
Since the molecule is polar, this means that all the electrons are concentrated at one end and the molecule is partially negatively charged on that end. This negative end makes the surrounding molecules have an instantaneous dipole also, attracting the surrounding molecules' positive ends. This process is known as the Force of attraction.
Hope you find my answer useful.
Harith