caa a22 4500 463217381 CHVBK 20180405153201.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s00269-007-0192-4 doi (NATIONALLICENCE)springer-10.1007/s00269-007-0192-4 Thermodynamic mixing behavior of synthetic Ca-Tschermak-diopside pyroxene solid solutions: II. Heat of mixing and activity-composition relationships [Elektronische Daten] [A. Benisek, K. Etzel, L. Cemič] The heat of mixing for the binary solid solution diopside-Ca-Tschermak was investigated at T=980K by lead borate solution calorimetry. A new statistical technique was applied to overcome the problem of using experimental data of various precisions. A two-parameter Margules model was fitted to the calorimetric data leading to W CaTs-Di H =31.3±3.4kJmol−1 and W H Di-CaTs=2.4±4.3kJmol−1. The results are in good agreement with calorimetric data given in the literature. They agree also with enthalpy data that were extracted from phase equilibrium experiments. With configurational entropy values taken from the literature, the volume and the vibrational entropy, presented in Part I of this work, and the enthalpy data of this study, the activity-composition relationships of the diopside-Ca-Tschermak binary were calculated. Springer-Verlag, 2007 Benisek A. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut Etzel K. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut Cemič L. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut Physics and Chemistry of Minerals Springer-Verlag 34/10(2007-12-01), 747-755 0342-1791 34:10<747 2007 34 269 https://doi.org/10.1007/s00269-007-0192-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00269-007-0192-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Benisek A. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut NATIONALLICENCE 700 1- Etzel K. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut NATIONALLICENCE 700 1- Cemič L. Abteilung Mineralogie, Institut für Geowissenschaften, Universität Kiel, Olshausenstraße 40, 24118, Kiel, Germany aut NATIONALLICENCE 773 0- Physics and Chemistry of Minerals Springer-Verlag 34/10(2007-12-01), 747-755 0342-1791 34:10<747 2007 34 269 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer