Concepts Of Physics MCQ Edition [Volume 1]PhysicsFluid Mechanics

A liquid can readily change its shape while a solid cannot, because

Options

Athe average distance between molecules is greater in solids
Batoms combine to produce larger molecules in a solid
Cthe forces between molecules are stronger in solids than in liquids
Dthe density of a liquid is lower than that of a solid

Correct answer

C. the forces between molecules are stronger in solids than in liquids

Step-by-step solution

In solids, the intermolecular forces of attraction are very strong, which holds the constituent particles in fixed positions and restricts their movement. This gives solids a definite shape and rigidity. In liquids, the intermolecular forces are weaker compared to solids. This allows the molecules to slide over one another, enabling the liquid to flow and readily change its shape to take the shape of the container.

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