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Phase Equilibrium

Phase Equilibrium. Equilibrium : Two opposing processes go on at the same time and at the same rate. Phase Equilibrium : Equilibrium between two different phases of matter: Solid Liquid Liquid Gas. Phase Equilibrium. Condensation = Evaporation Rate Rate

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Phase Equilibrium

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  1. Phase Equilibrium

  2. Equilibrium: • Two opposing processes go on at the same time and at the same rate.

  3. Phase Equilibrium: • Equilibrium between two different phases of matter: • Solid Liquid • Liquid Gas

  4. Phase Equilibrium Condensation = Evaporation Rate Rate Melting Rate = Freezing Rate

  5. Solution Equilibrium Rate Leaving Solution = Rate Entering Solution Closed Bottle: CO2(g) CO2(aq)

  6. Open the bottle, decrease the pressure CO2(g) CO2(aq)

  7. Phase Equilibrium Dissolving Rate = Crystallization Rate NaCl(s) Na+(aq) + Cl-(aq)

  8. Learning Check • When a seltzer bottle is opened, the mixture begins to fizz as the carbon dioxide comes out of solution. What happens when the bottle is resealed? Explain.

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