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The News of Altai State University
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A.Yu. Grinevich, V.S. Smorodinov, N.M. Oskorbin

Mathematical Modeling of Concentration Dependence of Saturation Pressure of Ternary Systems and Definition of Activity Coefficients

The paper substantiates equations of concentration dependence of logarithms of activity coefficients of ternary liquid systems. Their calculations under the experimental data on saturation pressure of three- and bipropellant liquid systems are made. When calculating constant quotients of models the nonlinear least square method is used.
Key words: liquid systems, saturation pressure, activity coefficients, mathematical model.

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