A new formula for accurate calculation of water activity in sorption calorimetric experiments

被引：27

作者：

Kocherbitov, V ^{[1
]}

机构：

[1] Malmo Univ, SE-20506 Malmo, Sweden

来源：

THERMOCHIMICA ACTA | 2004年 / 414卷 / 01期

关键词：

sorption calorimetry; water activity; diffusion; corrections;

D O I：

10.1016/j.tca.2003.11.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A sorption calorimetric method proposed by Wadso and Markova allows determination of water activity. Calculation of water activity is based on Fick's first law. The correct form of the Fick's law takes into account not only vapour diffusion itself but also bulk flow of vapour. A new formula, which uses the correct form of the diffusion law for direct calculation of water activity, is proposed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：43 / 45

页数：3

共 4 条

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