Phase Diagrams: Solid, Liquid & Gas Roadmaps

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Presentation transcript:

Phase Diagrams: Solid, Liquid & Gas Roadmaps H2O a. High T gas Solid b. Gas  Liquid (boiling) Liquid Pressure (atm) e. d. c. b. a. c. Liquid 1.0 d. Liquid  Solid Transition 0ºC Gas e. Cold Solid 100 Temperature (ºC)

Phase Diagrams: Solid, Liquid & Gas Roadmaps H2O d. a. Low P. Gas Solid Liquid c. b. Gas  Solid transition Pressure (atm) 1.0 c. Solid  Liquid b. Gas d. Liquid a. 100 Temperature (ºC)

Pressure and Density Increasing Pressure Least Dense Most Dense Gas Piston Gas Increasing Pressure Least Dense Most Dense Many Materials: Gas Liquid Solid ...but for water! Gas Solid Liquid

Phase Diagrams: Solid, Liquid & Gas Roadmaps H2O Gas Solid Liquid Pressure (atm) Vapor pressure Atmospheric pressure = 1.0 0.8 Boiling Point Temperature 100 ºC for H2O @ 1 atm New Boiling Point Temperature (92ºC) 100 92 Temperature (ºC)