Which Shape Characteristics of the Intermolecular Interaction of Liquid Water Determine Its Compressibility?

Frontiers in Physics

Yasutomi, Makoto¹ 

[1] Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus, Okinawa, Japan

关键词: Isothermal compressibility;    liquid water;    Intermolecular interaction;    Thermodynamic mechanism;    Ornstein-Zernike approximation;   

DOI  :  10.3389/fphy.2016.00021

学科分类：物理（综合）

来源: Frontiers

【 摘 要 】

We consider a fluid of spherical particles with a pair potential given by a hard core repulsion and a tail, and show that the isothermal compressibility of liquid water is determined by the degree of steepness of the soft repulsion near the hard-core contact. This helps us understand the thermodynamic mechanism that causes the compressibility anomaly of liquid water.

【 授权许可】

CC BY