Macroscopic non-equilibrium thermodynamics in dynamic calorimetry

被引:35
|
作者
Garden, J. -L.
机构
[1] Univ Grenoble 1, Lab Associa, CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble 9, France
[2] Inst Natl Polytech Grenoble, F-38042 Grenoble 9, France
关键词
ac-calorimetry; non-equilibrium thermodynamics; affinity; entropy production; frequency dependent heat capacity; complex heat capacity;
D O I
10.1016/j.tca.2006.08.017
中图分类号
O414.1 [热力学];
学科分类号
摘要
What is really measured in dynamic calorimetric experiments is still an open question. This paper is devoted to this question, which can be usefully envisaged by means of macroscopic non-equilibrium thermodynamics. From the pioneer work of De Donder on chemical reactions and with other authors along the 20th century, the question is tackled under an historical point of view. A special attention is paid about the notions of frequency dependent complex heat capacity and entropy production due to irreversible processes occurring during an experiment. This phenomenological approach based on thermodynamics, not widely spread in the literature of calorimetry, could open significant perspectives on the study of macro-systems undergoing physico-chemical transformations probed by dynamic calorimetry. (C) 2006 Elsevier B.V. All rights reserved.
引用
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页码:85 / 105
页数:21
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