Question

From your observations in this Topic, write a general description of what happens to solids, liquids, and gases as they are (a) warmed (b) cooled​

Answer 1

When solid, liquid, and gases are heated they usually expand. this happens due to increase in the kinetic energy of molecules. On heating they start moving faster and away from each other which makes them expand.

real expansion of liquid = apparent expansion of liquid + volume expansion of the container

If gas is cooled, it

changes to water (liquid). This change is called condensing.

If water (liquid) is cooled, it changes to ice (solid). This change is called

freezing. Water freezes at 0° C.

Different solids have different melting and freezing point and behave differently when heated or when cold