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Difference between Adhesion and Cohesion | Adhesion vs Cohesion

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Paper : Medical Differences FAQs | Platform : Vs or Differences FAQs | Category : General FAQs

Adhesion or cohesion refers to the force of attraction between similar or different molecules. These forces can also exist together eg when liquid, when stored in a container the force between edges of a liquid and surface of the container is called adhesion and cohesion, which is the force of attraction between the water molecules.

 

What is Adhesion?

It is the force of attraction between different types of molecules. Molecules have a tendency to attract each other. we can see adhesion when we use glue, cement, paint etc. Adhesion also helps in the transportation of water in plants through the xylem.

What is Cohesion?

It is the force of attraction between molecules of the same substances. Eg it is due to these forces water droplets are formed. Since these are forces within the same substance, it helps in giving shape and structure.




Let us now see the differences in the table given below-

Adhesion

Cohesion

This type of attraction is intramolecular which means between molecules of different substances.

This is intermolecular which means between molecules of the same substance.

Electrostatic attraction is included in this.

Hydrogen bonding and van der walls forces are included in this. 

Mainly found in compounds. 

Mainly found in elements.

A common example of adhesion is glue, paint which adheres to the surface.

Water droplet formation, surface tension and capillary action are examples of cohesion.
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