See "Related Questions". Phase changes are reversible by adding or subtracting heat. In many cases chemical changes are not easily reversed.
A change in phase is a physical process.
A phase change is an example of a physical change, not a chemical, nuclear, or covalent change. During a phase change, the substance undergoes a change in state (solid, liquid, gas) without any change in its chemical composition.
Phase changes are physical changes in nature. They involve a change in the state of matter (solid, liquid, gas) rather than a change in the chemical composition of the substance. Heating or cooling a substance can trigger phase changes.
physical change- the composition of the ethanol is not effected
It is called a phase change.
phase change
Boiling is a physical change.
Boiling is a physical phenomenon, a change of phase.
Yes, evaporation is a physical change of phase.
Yes, evaporation is a physical change of phase.
Yes, evaporation is a physical change of phase.
Physical; all phase changes are physical changes because the composition does not change.