具有多重定态的化学反应中的相变及临界点分类

研究了具有多重定态的化学反应中的相变及其临界现象。参照Landau相变理论的基本精神,提出了以判断临界点的稳定性及其热力学函数的连续性为准则,来对临界点进行分类,从而说明了化学多重定态中相变和临界现象的多样性。一般来说,多稳性的级次越高,相变和临界点的式样也越多。最后,对一个在非理想情形下可能具有三稳态的自催化反应模式中的相变和临界现象进行了考察。

The phase transition and classification of critical points in the multistability chemical reactions

This paper reports the study on the phase transition and classification of critical points in the multistability chemical reaction systems. It is demonstrated that the higher the order of the multistability, the wider variety of phase transitions. A classification scheme of critical points according to the stability criteron and the continuity of thermodynamic functions is suggested. It is useful for us to study critical phenomena especially in the nonequilibrium systems including the multistable chemical ones.