Lecture 16: Equilibrium of Multiple Condensable Vapors Problem 6: A tank is filled with propane C₂H₂, the first component, and n-hexane CH₁4, the second component. For a constant temperature, there exist both liquid and vapor phases inside the tank, and the liquid and vapor are in equilibrium. The measured vapor composition is y₁ = 0.925008, y₂ = 0.074992, liquid composition x₁ = 0.243423, x₂ = 0.756577. The total mass inside the container is 5 moles, and the 3.851377 moles are in the liquid phase. 1. Calculate the equilibrium constants K₁, K₂ (3 points) 2. Calculate the moles of propane and n-hexane in the vapor phase, 1v1.1v2 (3 points) 3. Calculate the moles of propane and n-hexane in the liquid phase, 1₁, 12 (3 points) 4. Next, the system temperature is raised above the critical temperature of n-hexane, and both compounds exist as vapor only. Calculate the composition inside the container. (3 points) Propane + n-Hexane Vapors Propane + n-Hexane Liquids

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