摘要
对纯液体沸腾汽化过程的热力学问题用吉布斯自由能判据进行了详细的讨论 ,指出生成一个球形气泡新相时必须克服一个能峰 ,而且这个能峰随液体的过热度的增大而变小 ,从而合理地解释了液体沸腾汽化的过热现象 。
The article discusses a thermodynamical question by using Gibbs free energy criterion in a liquid boiling vaporization process, and points out that an energy barrier must be overcome when liquid vapor change into a ball bubble,and that the energy barrier decreases as the excessive heating degree raises, thereby explains the excessive heating phenomenon in a liquid boiling vaporiaztion precess.It asso discusses Kelvin's formule of a ball bubble in a liquid.
关键词
液体汽化
过热现象
热力学
沸腾
liquid vaporization
excessive heating phenomenon
thermodynamics
