Thermodynamical Behaviour of Liquid Water near the Triple Point

概要

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The thermodynamical behaviour of liquid water, especially the anomalousbehaviour (negative thermal expansivity etc.) near the triple point, is rigorously in-vestigated on the basis of both the theoretical framework established in the authors'previous paper (by using the model of one-dimensional gas) and the experimentaldata accumulated for water. Thermodynamical diagrams in the T-V, P-T and P-Vplanes (7'=temperature, F=volume, P=pressure) are drawn. The region R (in theT-V plane), in which the pressure coefficient is negative, and the correspondingregion R' (in the P-T plane), in which the thermal expansivity is negative, are studied,especially in relation to the intersection and inversion of isotherms in the P- V plane.The anomalous behaviour of P- V isotherms for liquid water (including their intersec-lion with each other, their touching the maximum-density curve, and their crossingthe freezing and boiling curves) is discussed.
社団法人日本物理学会の論文
1991-12-15