Comparison between measured and calculated thermodynamic data for ternary liquid alloys

The activity of zinc of three liquid ternary alloys (Cu, Ag, Au)-Sb-Zn was measured with an emf (electromotive force) method. From these measurements the thermodynamic properties were derived. This set of data is compared with the results of a calculation using four different models. For this calculation the thermodynamic properties of the binary sytems were used.