Question

Define cohesive force and adhesive force of molecules.

Answer 1

Cohesive force:

1. The cohesion force is defined as the attraction between the same molecules
2. The attraction between the same molecules of water molecules etc is an example of cohesive force:

Adhesive force:

1. The force of adhesion is defined as the attraction between two or more different molecules
2. For example, when a glass of water is emptied, the particles remain stuck to the glass due to the molecular adhesion between the water and the glass.