Zur Thermodynamik im System Rhenium—Sauerstoff
Copyright policy )Zur Thermodynamik im System Rhenium—Sauerstoff
AbstractDie freie Bildungsenthalpie von orthorhombischem ReO2 wird mit der Festkörperkette Fe, FeO/ZrO2 · Y2O3/Re, ReO2 bestimmt. Zwischen 850 und 1130 K ergibt sich: fδGT0ReO2 = ‐104840 + 43,20 · T ± 530 [cal/mol]. Bildungsenthalpie und Standardentropie werden mit δCp = 3,14 + 1,08 · 10−3 · T ‐2,69 · 105 · T−2 [cal/K · mol] berechnet: fδH2980 = ‐106,9 ± 2,0 kcal/mol, S2980ReO2 = 11,5 ± 1,5 cal/K · mol. Zwischen 298 und 1300 K erhält man: fGT0ReO2 = ‐107 570 ‐ 5,16 · T · log · T + 61,40 · T + 1000 [cal/mol].In einer übersicht werden die thermodynamischen Daten der Rheniumoxide ReO2, ReO3 und Re2O7 zusammengestellt.
- University of Buenos Aires Argentina
- Karlsruhe Institute of Technology Germany
ddc:620, Engineering & allied operations, info:eu-repo/classification/ddc/620, 620
ddc:620, Engineering & allied operations, info:eu-repo/classification/ddc/620, 620
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