explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the…

Brief Explanations:

The average kinetic energy of particles is directly related to their speed. When particles slow down, their average kinetic energy decreases. Thermal energy is the total kinetic and potential energy of the particles in a substance. Since kinetic energy is part of thermal energy and it decreases, thermal energy also decreases. Temperature is a measure of the average kinetic energy of the particles in a substance. So, when average kinetic energy decreases, temperature decreases as well.

Answer:

The average kinetic energy decreases, the thermal energy decreases, and the temperature decreases.