摘要
从能量公设的角度论述了自由能及其判据的普遍化形式,并对其本质内涵进行了讨论.讨论认为:热力学系统中自由能的一般形式是与N种功类型相关的各种能形式之和,对孤立物体系在温度不变的情形下,不可逆过程总是导致总自由能的减少.通过实例说明了普遍化形式自由能判据的应用.
The general form of the free energy and its criterion is educed from the energy postulate, and the essential connotation of the free energy and its criterion is discussed. It is considered that the general form of the free energy is summation of all energy forms correlating with N kinds of work in a thermodynamic system and that the inreversible processes of an isolated system for ever results in the reduction of total free energy under the condition of the fixed temperature. It is showed by an example how the general form of the free energy criterion is applied, which embodies the philosophy thought that all kinds of movement may interact.
出处
《大学物理》
北大核心
2005年第9期38-41,47,共5页
College Physics
基金
国家"九七三"重点基础研究发展规划资助项目(G2000026307)
华南理工大学传热强化与过程节能教育部重点实验室访问学者资金资助项目
广西师范大学博士科学研究启动基金资助项目
关键词
能量公设
自由能判据
水滴增长
energy postulate
free energy criterion
water drop increase
