| Autor: |
Sharpataya, G. A., Gavrichev, K. S., Khoroshilov, A. V., Plakhotnik, V. N., Gurevich, V. M. |
| Předmět: |
|
| Zdroj: |
Journal of Thermal Analysis & Calorimetry; Nov2005, Vol. 82 Issue 2, p339-346, 8p |
| Abstrakt: |
The heat capacity of cesium hexafluoroarsenate, CsAsF6, was measured from 300 to 850 K by differential scanning calorimetry. The results indicate that the structural transformation from the rhombohedral to cubic phase, occurring in the range 235-360 K, relates to gradual transition completed isothermally. The enthalpy of the transition is 6.015±0.186 kJ mol-1, and its entropy is 17.21±0.58 J K-1 mol-1≈ Rln8, which suggests that this structural transition belongs to the order-disorder type. The thermodynamic properties of CsAsF6 were evaluated in the range 10-760 K. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
