Triple Point demo: Water boils under vacuum making ice.

4C30.15 • C+80+5

Triple Point: Water boils under vacuum, making ice. Water is placed in a watch glass atop a beaker of sulphuric acid inside a heavy-walled black aluminum cylinder with a thick flat glass top. The vacuum pump lowers the pressure, causing the water to boil; the water then freezes very quickly. TV monitor shows water freezing. TRIPLE POINT.

Usage

Fall 2013 - Summer 2023

5 reservations across 3 classes

C+80+0 Triple Point: Cooled water in sealed cell exhibits all three phases. C+80+2 Freezing liquid Nitrogen. C+80+10 P.V.T. surface model for water. C+80+15 P.V.T. surface model for carbon dioxide. C+80+20 Wall chart of isothermals.

Triple Point demo: Water boils under vacuum making ice.

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