Clausius–Clapeyron relation
Description
The Clausius–Clapeyron relation, named after Rudolf Clausius and Benoît Paul Émile Clapeyron, is a way of characterizing a discontinuous phase transition between two phases of matter of a single constituent. On a pressure–temperature (P–T) diagram, the line separating the two phases is known as the coexistence curve. The Clausius–Clapeyron relation gives the slope of the tangents to this curve.
Related formulasVariables
| dP | slope of the tangent to the coexistence curve at any point, (N/m2) |
| dT | temperature difference (K) |
| L | latent heat (joule/kg) |
| T | temperature (K) |
| Δv | specific volume change of the phase transition (m3/kg) |