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Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime
Liquid water is considered to be a peculiar example of glass forming materials because of the possibility of giving rise to amorphous phases with different densities and of the thermodynamic anomalies that characterize its supercooled liquid phase. In the present work, literature data on the density...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582456/ https://www.ncbi.nlm.nih.gov/pubmed/33019640 http://dx.doi.org/10.3390/ijms21197269 |
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author | Mallamace, Francesco Mensitieri, Giuseppe Mallamace, Domenico Salzano de Luna, Martina Chen, Sow-Hsin |
author_facet | Mallamace, Francesco Mensitieri, Giuseppe Mallamace, Domenico Salzano de Luna, Martina Chen, Sow-Hsin |
author_sort | Mallamace, Francesco |
collection | PubMed |
description | Liquid water is considered to be a peculiar example of glass forming materials because of the possibility of giving rise to amorphous phases with different densities and of the thermodynamic anomalies that characterize its supercooled liquid phase. In the present work, literature data on the density of bulk liquid water are analyzed in a wide temperature-pressure range, also including the glass phases. A careful data analysis, which was performed on different density isobars, made in terms of thermodynamic response functions, like the thermal expansion [Formula: see text] and the specific heat differences [Formula: see text] , proves, exclusively from the experimental data, the thermodynamic consistence of the liquid-liquid transition hypothesis. The study confirms that supercooled bulk water is a mixture of two liquid “phases”, namely the high density (HDL) and the low density (LDL) liquids that characterize different regions of the water phase diagram. Furthermore, the [Formula: see text] isobars behaviors clearly support the existence of both a liquid–liquid transition and of a liquid–liquid critical point. |
format | Online Article Text |
id | pubmed-7582456 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75824562020-10-29 Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime Mallamace, Francesco Mensitieri, Giuseppe Mallamace, Domenico Salzano de Luna, Martina Chen, Sow-Hsin Int J Mol Sci Article Liquid water is considered to be a peculiar example of glass forming materials because of the possibility of giving rise to amorphous phases with different densities and of the thermodynamic anomalies that characterize its supercooled liquid phase. In the present work, literature data on the density of bulk liquid water are analyzed in a wide temperature-pressure range, also including the glass phases. A careful data analysis, which was performed on different density isobars, made in terms of thermodynamic response functions, like the thermal expansion [Formula: see text] and the specific heat differences [Formula: see text] , proves, exclusively from the experimental data, the thermodynamic consistence of the liquid-liquid transition hypothesis. The study confirms that supercooled bulk water is a mixture of two liquid “phases”, namely the high density (HDL) and the low density (LDL) liquids that characterize different regions of the water phase diagram. Furthermore, the [Formula: see text] isobars behaviors clearly support the existence of both a liquid–liquid transition and of a liquid–liquid critical point. MDPI 2020-10-01 /pmc/articles/PMC7582456/ /pubmed/33019640 http://dx.doi.org/10.3390/ijms21197269 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Mallamace, Francesco Mensitieri, Giuseppe Mallamace, Domenico Salzano de Luna, Martina Chen, Sow-Hsin Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title | Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title_full | Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title_fullStr | Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title_full_unstemmed | Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title_short | Some Aspects of the Liquid Water Thermodynamic Behavior: From The Stable to the Deep Supercooled Regime |
title_sort | some aspects of the liquid water thermodynamic behavior: from the stable to the deep supercooled regime |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7582456/ https://www.ncbi.nlm.nih.gov/pubmed/33019640 http://dx.doi.org/10.3390/ijms21197269 |
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