The Phase Rule and Its Applications

by Alexander Findlay

II. Univariant Systems: One component in two phases.

(a) Rhombic sulphur and vapour.

(b) Monoclinic sulphur and vapour.

(c) Rhombic sulphur and liquid.

(d) Monoclinic sulphur and liquid.

(e) Rhombic and monoclinic sulphur.

(f) Liquid and vapour.

III. Invariant Systems: One component in three phases.

(a) Rhombic and monoclinic sulphur and vapour.

(b) Rhombic sulphur, liquid and vapour.