Question

What happens to particles during changes of state between solids, liquids, and gases?

Answer 1

Answer:
Their vibrations speed up

Explanation:
They start vibrating faster and faster and start generating more and more heat and separate from each other so, therefore (usually), become less dense

Answer 2

If they are going from solid to liquid or liquid to gas or solid to gas
The particles will gain energy
The distance between particles increases as they move away from each other
The force attraction decreases
The particles change their arrangement and hense they change state

If there going from gas to solid or from gas to liquid or from liquid to solid

The particles will lose energy
The distance between particles will decrease as they get closer to each other
The force of attraction increases
The particles change their arrangement and hence they change state