The solutions of these equations are of the following kind: The proposed scheme does not require any special assumptions, can be provided with reliable experimental input data and as a result permit us to obtain internally consistent thermodynamic description of the systems under study. Experimental Two types of measurements were carried out: 1) determining the caloric properties of liquid-metal systems (enthalpy of formation, heat capacity, heats of phase transitions) in the range of concentrations and temperatures using a few adiabatic reaction calorimeters of several types for systems with a number of components from 2 to 4 [7,8], 2) determining the thermodynamic activity or partial Gibbs energy in the range of concentrations at one non-high reference temperature (Tj = const. ~ 400K) by effusion method (modified Knudsen method) on partial pressure of saturation vapor components obtained by measurement of intensity their atomic flows (the effusion orifice was made with a calibrated electron-beam pulse generated directly in vacuum
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