Asked by ny

As the temperature of a substance increases, the average kinetic energy of the particles in the substance

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Answered by GPT-5 mini AI
Increases.

Temperature is a measure of the average kinetic energy of particles. For a monatomic ideal gas, for example, the average translational kinetic energy per particle is (3/2)kBT (or (3/2)RT per mole), so as T rises the average kinetic energy rises proportionally. (Note: during a phase change the temperature — and thus the average kinetic energy — can remain constant even though added heat goes into changing potential/internal energy.)