Question

what is cohestion and adhesion
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Answer 1

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☆Adhesion:

Defination: The molecular attraction exerted between the surfaces of bodies in contact is called ADHESION

Other points:

• Adhesion happens between two dissimilar molecules or substances.
• Adhesion is generally the force of attraction present between the water molecules and the walls of xylem vessels.
• Capillary action and meniscus (the curved surface which is formed by any liquid in a cylinder) are the effects of adhesion.
• Adhesion is caused by electrostatic or mechanical forces that exist among two kinds of different substances.
• A strong adhesion force causes the liquid to spread all over the surface.

☆Cohesion:

Defination: Molecular attraction by which the particles of a body are united throughout the mass is called COHESION.

Other points:

• When two similar substances or molecules face the force of attraction this force is known as cohesion force.
• Cohesion force is rampant among water molecules.
• Surface tension, meniscus and capillary action are the effects of cohesion.
• Cohesion is caused by hydrogen bonding and Van der Waals forces.
• A strong force of cohesion forms water droplets on any surface.

Hope it helps !!

Answer 2

Adhesion:

Defination: The molecular attraction exerted between the surfaces of bodies in contact is called ADHESION

Other points:

Adhesion happens between two dissimilar molecules or substances.

Adhesion is generally the force of attraction present between the water molecules and the walls of xylem vessels.

Capillary action and meniscus (the curved surface which is formed by any liquid in a cylinder) are the effects of adhesion.

Adhesion is caused by electrostatic or mechanical forces that exist among two kinds of different substances.

A strong adhesion force causes the liquid to spread all over the surface.

☆Cohesion:

Defination: Molecular attraction by which the particles of a body are united throughout the mass is called COHESION.

Other points:

When two similar substances or molecules face the force of attraction this force is known as cohesion force.

Cohesion force is rampant among water molecules.

Surface tension, meniscus and capillary action are the effects of cohesion.

Cohesion is caused by hydrogen bonding and Van der Waals forces.

A strong force of cohesion forms water droplets on any surface.