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Why is diffusion very slow in solids?

Answer and explanation

Correct answer: Particles only vibrate to a limited extent about their fixed positions

In a solid, particles are closely packed and have strong forces of attraction between them. Therefore, they cannot move freely from one place to another; they mainly vibrate about fixed positions. This limited motion makes diffusion very slow in solids. Options B and C describe properties more closely associated with gases. Exam tip: diffusion is generally fastest in gases, slower in liquids, and slowest in solids.

Related tags

Diffusion In SolidsStates Of MatterParticle MotionIntermolecular ForcesClass 11 ChemistryNature Of MatterSome Basic Concepts Of ChemistryChemistry

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