Question
Define (1) cohesive force (2) adhesive force.
Give one example in each case.
Give one example in each case.
✓
Answer
(1) Cohesive force: The intermolecular force of attraction between two molecules of the same material is called the cohesive force.
Example : The force of attraction between two water molecules.
(2) Adhesive force: The intermolecular force of attraction between two molecules of different materials is called the adhesive force.
Example : The force of attraction between a water molecule and a molecule of the solid surface which is in contact with water.
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