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temperature and changes of state 17. the speed of the particles in a su…

Question

temperature and changes of state

  1. the speed of the particles in a substance changes when the ____________ changes.

Explanation:

Brief Explanations

The speed of particles in a substance is related to its thermal energy. Temperature is a measure of the average kinetic - energy of the particles. When temperature changes, the kinetic energy of the particles changes, thus changing their speed.

Answer:

temperature