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In which state is the kinetic energy of particles generally highest?

Answer and explanation

Correct answer: Gas

The governing concept is the particle model of matter: temperature is related to the average kinetic energy of particles, while the state of matter describes how freely those particles can move. In a gas, particles are separated by relatively large spaces and move rapidly in random directions with the greatest freedom. Therefore, among the listed states, gas generally has the highest particle motion and hence the highest average kinetic energy under comparable conditions. Solid particles mainly vibrate about fixed positions, and liquid particles can move but remain relatively close together. A crystal is an ordered solid, so it is not a separate higher-energy state. Thus option A is correct.

Related tags

Kinetic EnergyStates Of MatterParticle MotionNature Of MatterSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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