The critical point of ammonia, NH₃, occurs at a pressure of 11.3 MPa, temperature of 406 K and molar volume of 72.5 cm³ mol^-1. Determine the compression factor of ammonia at the critical point. A) 0.243 B) 1 C) 4.12 D) 0.741

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Quizplus · Accepted Answer

The critical point is the point at which the liquid and gas phases of a substance have the same density and are indistinguishable from each other. At the critical point, the compression factor is given by:Z = PV/RT = 1where P is the pressure, V is the molar volume, R is the gas constant, and T is the temperature.Substituting the given values into the equation, we get:Z = (11.3 MPa)(72.5 cm^3 mol^-1)/(8.314 J mol^-1 K^-1)(406 K) = 0.243Therefore, the compression factor of ammonia at the critical point is 0.243.

The Critical Point of Ammonia, NH3, Occurs at a Pressure

The Critical Point of Ammonia, NH₃, Occurs at a Pressure