The heat capacity and thermodynamic functions of cerussite

被引：11
|
作者：
Bissengaliyeva, Mira R. [1 ]
Gogol, Daniil B. [1 ]
Taimassova, Shynar T. [1 ]
Bekturganov, Nuraly S. [2 ]
机构：
[1] Inst Problems Complex Dev Mineral Resources, Karaganda 100019, Kazakhstan
[2] SC Natl Sci Technol Holding Parasat, Astana 010000, Kazakhstan
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2012年 / 47卷
关键词：
Adiabatic calorimetry; Thermodynamic functions; Lead carbonate; TEMPERATURE-RANGE; CALORIMETRY; MINERALS; RAMAN; LEAD;
D O I：
10.1016/j.jct.2011.10.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The heat capacity of natural lead carbonate (cerussite, PbCO3) has been measured by means of the low-temperature adiabatic calorimetry over the temperature range of (4 to 320) K. Its thermodynamic functions Cp(T), S(T) and H(T)-H(0) have been calculated over the whole temperature range from the experimental data on the heat capacity. The standard values of the heat capacity and entropy are equal to C-p,C-m degrees = 87.07 +/- 0.09 J.mol(-1).K-1, S-m degrees = 125.45 +/- 0.20 J.mol(-1)K(-1), respectively. An anomalous deviation of the heat capacity has been registered in the range of (269 to 278) K. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：197 / 202
页数：6
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