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Vapor-liquid equilibrium pressures have been measured as a function of overall composition for binary mixtures of NH 3 and CHF 2 CF 3 at constant temperatures of - 19.00, 3.23, 35.00, and 49.90°C. The coexistence curves for vapor-liquid equilibrium at each temperature were regressed from these measurements using a modified form of the Peng-Robinson equation of state to calculate...