文献类型：期刊文献

英文题名：DIFFUSION-COEFFICIENT AND INTERNAL-PRESSURE

作者：SHI, JB; LIU, GJ

年份：1993

卷号：51

期号：6

起止页码：521

外文期刊名：ACTA CHIMICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1993LQ78200001)】；

语种：英文

摘要：The Eyring's model of viscous flow in liquids has been extended to liquid mixtures A relationship between the diffusion coefficient and the internal pressure of solvents is derivated for infinitly dilute solutions by thermodynamic method. It is shown that the size of hole required for diffusion just equals the liquid volume occupied by a molecule of solute and the activation energy of diffusion depends not only on interaction energy between solute and solvent molecules, but also on degree of easiness for making a hole in the solvents.