The kinetic energy of particle ………… on cooling (increases/decreases).

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Solution

According to the Kinetic molecular theory of matter “The particles are in a state of continuous motion and thus have kinetic energy associated with them”
Explanation of kinetic energy:
With the supply of heat energy to matter, the kinetic energy of particles increases, I,e; they start moving more vigorously.
But if the matter is cooled, heat energy is taken out of it, thus kinetic energy decreases.
Hence the kinetic energy of particles decreases on cooling.

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