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Phase Diagram for Water

Phase Diagram for Water
Phase diagrams, like this phase diagram for water, show whether a substance exists as a vapor, liquid, or solid at a given temperature and pressure. The point where the three lines intersect in a phase diagram shows the pressure and temperature where the solid, liquid, and vapor all exist in equlibrium. This point, which occurs for water at 0.01°C (32.02°F), is known as the triple point.
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Appears in these articles:
Phase Rule; Heat (physics); Freezing Point
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