The effect of a uniform electric field on homogeneous vapor-liquid nucleation in a dipolar fluid. I. Stockmayer fluid

被引:7
作者
Oh, KJ [1 ]
Gao, GT [1 ]
Zeng, XC [1 ]
机构
[1] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA
关键词
D O I
10.1063/1.477507
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The rate of homogeneous vapor-liquid nucleation is controlled mainly by the Gibbs formation free energy of critical clusters. Within the framework of the i/v cluster theory of Reiss and co-workers, the formation free energies of Stockmayer clusters in the presence of a uniform electric field are determined. The Helmholtz free energy of the clusters, an input required in the i/v cluster theory, is calculated via Monte Carlo simulations. The most significant result is that as a uniform electric field is applied the formation free energy at fixed supersaturation of the vapor becomes larger than that in the absence of a field, whereas at fixed chemical potential the formation free energy becomes smaller. (C) 1998 American Institute of Physics. [S0021-9606(98)50543-0].
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收藏
页码:8435 / 8441
页数:7
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