Pressure-Enthalpy Diagram for Water

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This Demonstration shows a pressure-enthalpy () diagram for water. Check and uncheck the boxes to add or remove a property from the diagram. You can show lines of constant vapor quality (blue), temperature (green), density (orange, dashed) and entropy (purple, dashed). You can show grid lines using a checkbox. Check the "critical" box to view the saturated liquid (light blue), saturated vapor (red) curves and the critical isotherm (magenta). View the diagram in color or black and white using buttons.

Contributed by: Rachael L. Baumann (November 2015)
Additional contributions by: John L. Falconer
(University of Colorado Boulder, Department of Chemical and Biological Engineering)
Open content licensed under CC BY-NC-SA



The screencast video at [1] explains how to use this Demonstration. For another explanation of pressure-enthalpy diagrams, view the screencast at [2].


[1] Pressure-Enthalpy Diagram for Water [Video]. (Aug 31, 2016)

[2] Pressure-Enthalpy Diagram [Video]. (Nov 23, 2015)

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