Question

Tell me about cohesive And adhesive forces

Answer 1

Answer:

Cohesive and adhesive forces are associated with bulk (or macroscopic) properties, and hence the terms are not applicable to the discussion of atomic and molecular properties. When a liquid comes into contact with a surface (such as the walls of a graduated cylinder or a tabletop), both cohesive and adhesive forces will act on it. These forces govern the shape which the liquid takes on. Due to the effects of adhesive forces, liquid on a surface can spread out to form a thin, relatively uniform film over the surface, a process known as wetting. Alternatively, in the presence of strong cohesive forces, the liquid can divide into a number of small, roughly spherical beads that stand on the surface, maintaining minimal contact with the surface.

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Answer 2

COHESIVE FORCES  are the intermolecular forces which cause tendency in liquids to resist separations.

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ADHESION is the property of different molecules or surfaces to cling to each other.......This is due to the adhesive force between the water molecules and the molecules of te container.

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