a steep upward sloping line
Boiling is a physical change.
It is the phase change from a liquid to a gas.
Melting, the phase change from a solid to a liquid, is considered a physical change rather than a chemical change because when the phase change takes place, the substance that was melted does not change its chemical composition, and the process could be reversed to get the original condition of the substance by freezing (liquid-solid).
The liquid will boil.
When a physical change takes place, a certain element or chemical will change its shape and in many cases, the volume too. Water takes the shape of the mold casing once it freezes.
A change of phase takes place at a constant temperature.
temperature
This a phase change, from liquid to gas.
Boiling is a physical change.
A phase change is a physical change. It is not a chemical change.
A phase change.
Evaporating and condensing
It is the phase change from a liquid to a gas.
A phase change.
condensation
Water changes phase.
This is boiling - liquid transformation in gas.