Triple point

Alternative definitions (2), class: vernacular (0)
Term: Triple point
Definition: The temperature, 273.16 K by definition, and pressure, 611.657 Pa, at which ice, water and water vapour are in thermodynamic equilibrium. The term 'point' derives from the practice in thermodynamics of choosing temperature and pressure as the coordinates of a two- or higher-dimensional phase diagram.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary