X1-045 (2007/06/29)

The triple point, and the vapour pressure

The triple point of a substance is a point at which three pure phases of that substance coexist. There are, however, other places where three phases coexist, provided at least one of these phases is impure. An example is the coexistence of solid, liquid, and impure gas. The vapour pressure in such situations is investigated.

full text                                        back to X1