Compressibility Anomalies in Stretched Water and Their Interplay with Density Anomalies
- Water keeps puzzling scientists because of its numerous properties which behave oppositely to those of usual liquids: for instance, water expands upon cooling, and liquid water is denser than ice. To explain this anomalous behavior, several theories have been proposed, with different predictions for the properties of supercooled water (liquid at conditions where ice is stable). However, discriminating between those theories with experiments has remained elusive because of spontaneous ice nucleation. Here we measure the sound velocity in liquid water stretched to negative pressure and derive an experimental equation of state, which reveals compressibility anomalies. We show by rigorous thermodynamic relations how these anomalies are intricately linked with the density anomaly. Some features we observe are necessary conditions for the validity of two theories of water.
Verfasserangaben: | Vincent Holten, Chen Qiu, Emmanuel Guillerm, Max WilkeORCiDGND, Jaroslav Ricka, Martin Frenz, Frederic CaupinORCiD |
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DOI: | https://doi.org/10.1021/acs.jpclett.7b02563 |
ISSN: | 1948-7185 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/29043801 |
Titel des übergeordneten Werks (Englisch): | The journal of physical chemistry letters |
Verlag: | American Chemical Society |
Verlagsort: | Washington |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
Erscheinungsjahr: | 2017 |
Datum der Freischaltung: | 20.04.2020 |
Band: | 8 |
Seitenanzahl: | 4 |
Erste Seite: | 5519 |
Letzte Seite: | 5522 |
Fördernde Institution: | Agence Nationale de la Recherche [CGSmuLab-ANR-12-SEED-0001]; Swiss National Science Foundation [200021-140777] |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
Peer Review: | Referiert |
Name der Einrichtung zum Zeitpunkt der Publikation: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften |