what is cohesion and adhesion

cohesion is the molecular force of attraction that exists between two or more molecules of the same kind or element. A very common example is the attraction between two water molecules in a glass tumbler with water.

adhesion is the molecular force of attraction that exists between two or more molecules of a different kind or different element . A very common example is the attraction between one glass molecule and water molecule in a glass tumbler with water.

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cohesion is basically the force between molecules of the same kind while adhesion is the force between molecules of different types. for example: the bond between molecules of water is cohesion. the force that causes glue and paper to stick(for eg.) is adhesive force.

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