A concentrated binary solution containing mostly species 2 (but x2 ≠ 1) is in equilibrium with a vapor phase containing both species 1 and 2. The pressure of this twophase system is 1 bar; the temperature is 25°C. At this temperature,  H1 = 200 bar and P2sat = 0.10 bar. Determine good estimates of x1 and y1. State and justify all assumptions.

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