H2O

Move the pointer over the map. Every point is a temperature and a pressure, and water has exactly one answer for what it does there.

Boundaries computed from IAPWS-95,
IAPWS R14-08(2011) and Wagner & Pruß (2002)

The probe follows your pointer

Temperature
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Pressure
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Hover the diagram to place the probe.

    What the molecules are doing

    How this panel is drawn, and what it cannot show

    Transitions from here

    Heating 1 kg at constant pressure

    How fast the molecules are going