The anomalous behavior of water sound speed

This work presents an analytic study of anomalies observed in the water sound speed. From fundamentals of thermodynamics, we show that the two-liquid model, which assumes that water is composed of two types of clusters, HDL and LDL, whose relative concentration depends on the thermal conditions of t...

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Bibliographic Details
Published inJournal of molecular liquids Vol. 389; p. 122790
Main Authors Simões, M., Cobo, R.F., Steudel, A., Santos, A.P.R., Yamaguti, K.E., Amaral, R.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2023
Subjects
Analytical description
Anomalous behavior
Excluded volume
Two-liquid model
Water
Water sound speed
Water
Anomalous behavior
Analytical description
Excluded volume
Water sound speed
Two-liquid model
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Summary:This work presents an analytic study of anomalies observed in the water sound speed. From fundamentals of thermodynamics, we show that the two-liquid model, which assumes that water is composed of two types of clusters, HDL and LDL, whose relative concentration depends on the thermal conditions of the sample, leads straightforwardly to the result that the excluded volume of water can change. From this result, we demonstrate how the parameters determining the water sound speed are modified by the thermal dependent interaction between its clusters, leading to a profile for this property that is typical of water. •Analytic study of anomalies in the water sound speed.•The two-liquid model and consideration of a variable excluded volume and excluded pressure.•Reconsidering the van der Waals' approach to an equation of state.•Propagation of sound in water is affected by the thermal dependent interaction between its clusters.
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2023.122790