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

页码：197 / 202

页数：6

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