In [[thermodynamics]], a '''phase transition''' is the transformation of a thermodynamic system from one [[phase]] to another. At phase-transition point, physical properties may undergo abrupt change- for instance, volume of the two phases may be vastly different. As an example imagine transition of liquid water into vapour at boiling point. | In [[thermodynamics]], a '''phase transition''' is the transformation of a thermodynamic system from one [[phase]] to another. At phase-transition point, physical properties may undergo abrupt change- for instance, volume of the two phases may be vastly different. As an example imagine transition of liquid water into vapour at boiling point. |