Solid, liquid, or gas.
Changes in the states of matter - or phase changes - do entail changes in volume.
A 'phase' change.
Phase change. Liquid phase to gaseous phase (evaporation) Liquid phase to solid phase (solidification, freezing) Solid phase to gaseous phase (sublimation9 Etc...
No. Water freezing into ice is a good example of a "phase change". Ice can melt back into water, so we know that the phase change is not permanent!
When matter is acted upon by force or temperature, it can move between all the states of matter: solid, liquid, and gas.
Changes in the states of matter - or phase changes - do entail changes in volume.
The melting phase changes are Solid~Liquid~Gas and the freezing phase changes are Gas~Liquid~Solid
The melting phase changes are Solid~Liquid~Gas and the freezing phase changes are Gas~Liquid~Solid
During phase changes the temperature of a substance does not change.
Its motion changes speed on the molecular level
A 'phase' change.
A phase transition.
Phase change. Liquid phase to gaseous phase (evaporation) Liquid phase to solid phase (solidification, freezing) Solid phase to gaseous phase (sublimation9 Etc...
Shape and volume
The most important are changes of phase: melting, boiling, freezing.
No. Water freezing into ice is a good example of a "phase change". Ice can melt back into water, so we know that the phase change is not permanent!
When matter is acted upon by force or temperature, it can move between all the states of matter: solid, liquid, and gas.