Triple Point Plot melting freezing liquid solid Pressure (atm)

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Presentation transcript:

Triple Point Plot melting freezing liquid solid Pressure (atm) vaporization condensation Pressure (atm) 0.6 2.6 sublimation deposition gas Temperature (oC) LeMay Jr, Beall, Robblee, Brower, Chemistry Connections to Our Changing World , 1996, page 488

Triple Point Water 22,058 Critical point Critical pressure Normal melting point Normal boiling point 101.3 Pressure (KPa) Solid Liquid Vapor Remind students of the effects of temperature and pressure on the state of matter. Students are familiar with the three states ofwater. What happens to the boiling point of water as pressure increases? (It increases.) What happens to the freezing point as the pressure increases? (It decreases.) What is the triple point (The temperature and pressure at which all three states coexist in equilibrium.) 0.61 Triple point 0.016 100 373.99 Critical temperature Temperature (oC)

Triple Point of CO2