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Why is the particle model useful for understanding the nature of matter?

Answer and explanation

Correct answer: It explains states, diffusion and compression

The governing concept is the particle model of matter: all matter is made of very small particles, the particles are in continuous motion, and spaces exist between them. This model connects microscopic behaviour with observations. In a solid, closely packed particles mainly vibrate, so the solid keeps a definite shape. In a liquid, particles can move past one another, so the liquid flows. In a gas, particles are far apart and move freely, allowing the gas to fill its container and be compressed. Random particle motion also explains diffusion, such as the spreading of perfume through a room. Therefore option A is correct. The other choices have no scientific basis and do not describe what the model explains.

Related tags

Particle ModelNature Of MatterDiffusionStates Of MatterCompressionSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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