For an enantiotropic system, a plot of the free energy against temperature shows a crossing point before the various melting points, and it may be possible to convert reversibly between the two polymorphs on heating and cooling or through physical contact with a lower energy polymorph.
A plot of the free energy against temperature shows a crossing point before the various melting points. This is for an enantiotropic system. It may be possible to convert reversibly between the two polymorphs on heating and cooling or through physical contact with a lower energy polymorph. This is for an enantiotropic system.