The table below shows the five data points, and corresponding predictions from the Peng-Robinson equation of state made using the binary interaction parameters k12=0.1 and k12=0.3. If your ONLY options were to use either k12=0.1 or k12=0.3, which would you pick? Give a quantitative rationale.
A pair of compounds, identified as 1 and 2, have the following properties:
You have five known VLE data points at 325 K. Your task is to generate the Pxy diagram describing all VLE mixtures of these compounds at 325 K, using phi-phi modeling and the Peng-Robinson equation.
Solve the objective functions of pressure and vapor phase mole fraction for k12 = 0.1 and k12 = 0.3:
For k12 = 0.1 data:
For k12 = 0.3 data:
For k12 = 0.1 data:
For k12 = 0.3 data:
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