Differentiate between the force of cohesion and force of adhesion.

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Solution

Answer:
There are some differences between the wall force of cohesion and the force of adhesion.
Sr.no
Adhesion
Cohesion
1. Force of adhesion happens between two different molecules or substances. Force of cohesion acts between the particles of the same substance.
2. For example, the force of attraction between the water molecules and the walls of glass. For example, the force of attraction between the water molecules that binds it together is known as the force of cohesion.
3. Capillary action is the effect of adhesion. Surface tension is the effect of cohesion.
4. Adhesion is caused by electrostatic or mechanical forces that exist between different substances. Cohesion is caused by hydrogen bonding and Vanderwall forces.
5. A strong adhesion force makes the liquid spread all over the surface. A strong force of cohesion makes water droplets on any surface.

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Sr.no	Adhesion	Cohesion
1.	Force of adhesion happens between two different molecules or substances.	Force of cohesion acts between the particles of the same substance.
2.	For example, the force of attraction between the water molecules and the walls of glass.	For example, the force of attraction between the water molecules that binds it together is known as the force of cohesion.
3.	Capillary action is the effect of adhesion.	Surface tension is the effect of cohesion.
4.	Adhesion is caused by electrostatic or mechanical forces that exist between different substances.	Cohesion is caused by hydrogen bonding and Vanderwall forces.
5.	A strong adhesion force makes the liquid spread all over the surface.	A strong force of cohesion makes water droplets on any surface.