What is the effect of increased temperature on the energy of atoms in a substance?

The effect of increased temperature on the energy of atoms in a substance is that it increases the average kinetic energy of those atoms. As temperature rises, the atoms absorb energy, which leads to increased movement. This increase in movement is evident as a rise in the atoms' kinetic energy, meaning they vibrate, rotate, or translate more rapidly. This concept is fundamental in thermodynamics and helps explain various physical phenomena, such as why substances expand when heated or change states, such as moving from solid to liquid or liquid to gas as temperature increases.

While other effects, such as transformation into a gas, can occur as temperature rises (especially at boiling points), the primary and immediate effect is the increase in the average kinetic energy of the particles within the substance. Understanding this relationship between temperature and kinetic energy is essential for grasping concepts related to thermal dynamics and states of matter.