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Partially-Miscible Liquids Phase Diagrams: Interactive Simulations

Simulation: Vapor-Liquid-Liquid Equilibrium (VLLE)

Try to answer these questions before determining the answer with the simulation. We suggest that you write down the reasons for your answers.

  1. At what mole fraction will the temperature stay constant when heat is added? Is there more than one?
  2. What vapor mole fraction can be in equilibrium with two liquid phases in this binary system?
  3. Can a point on a the partially-miscible phase diagram represent more than one condition (amounts of phases)?
Simulation: Partially-Miscible Liquids

Try to answer these questions before determining the answer with the simulation. We suggest that you write down the reasons for your answers.

  1. When the temperature increases above about 405 K, what happens?
  2. Suppose a mixture with a mole fraction of A equal to 0.2 is at 390 K and more of component A is added to the system. What happens?
  3. Suppose a mixture with a mole fraction of A equal to 0.6 is at 390 K and more of component A is added to the system. What happens?