Question

Explain how changes in temperature affect the particle motion of a substance.

Answer 1

I think if there is an increase in temperature applied to a substance, the particles of it tends to be heated, and when a particle is heated, it will be on its excited state, thus making it faster to move.

Answer 2

heat causes particles to push away from each other, lack of heat decreases this effect.

Answer 3

http://www.edquest.ca/component/content/article/144