河北工业科技2017，Vol.34Issue(2)：112-115,4.DOI:10.7535/hbgykj.2017yx02006
再论自发过程及热力学过程判据
Further discussion on spontaneous process and thermodynamic process criteria
任聚杰1
作者信息
- 1. 河北科技大学理学院,河北石家庄 050018
- 折叠
摘要
Abstract
Spontaneous process is an important concept of thermodynamics.It is combined with the second law of thermodynamics to indicate the direction of the process.So far,however,there is no satisfactory definition for spontaneous process.This has caused difficulties in the teaching of Physical Chemistry.In order to solve this problem,the examples of accepted spontaneous processes are analyzed and summarized.The problems existing in the current definition of spontaneous process are pointed out.It is pointed out that these problems are caused by the fact that people do not pay attention to the division of the system in the discussion of the spontaneous process.A clear definition of spontaneous process is obtained.The concept of non spontaneous processes that can occur under given conditions is derived.The convenient and practical direction criteria are given by combining these concepts with the second law of thermodynamics.The fuzziness of the previous spontaneous process definition is overcome.关键词
化学热力学/自发过程/非自发过程/热力学第二定律/判据Key words
chemical thermodynamics/spontaneous process/non spontaneous process/second law of thermodynamics/criteria分类
化学化工引用本文复制引用
任聚杰..再论自发过程及热力学过程判据[J].河北工业科技,2017,34(2):112-115,4.
