______________ Equation predicts the activity co-efficient from experimental data ?
Correct answer: D. Both B. & C.
- A. Lewis-Randall
- B. Margules
- C. Van Laar
- D. Both B. & C.
Explanation
The Margules and Van Laar equations are activity-coefficient models whose parameters are fitted to experimental vapor-liquid-equilibrium data. Lewis-Randall is primarily a standard-state or ideal-solution relation, not the requested empirical correlation.
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