Compressibility anomalies in stretched water and their interplay with density anomalies

Abstract

Water keeps puzzling scientists because of its numerous properties which behave oppositely to usual liquids: for instance, water expands upon cooling, and liquid water is denser than ice. To explain this anomalous behaviour, several theories have been proposed, with different predictions for the properties of supercooled water (liquid at conditions where ice is more 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.

arXiv comment17 pages, 3 figures, 24 references

References in corpus (5)

• Density minimum and liquid-liquid phase transition
• Two-structure thermodynamics for the TIP4P/2005 model of water covering supercooled and deeply stretched regions
• Anomalies in bulk supercooled water at negative pressure
• Shrinking of Rapidly Evaporating Water Microdroplets Reveals their Extreme Supercooling
• A comprehensive scenario of the thermodynamic anomalies of water using the TIP4P/2005 model

Cited by in corpus (16)

• Viscosity and self-diffusion of supercooled and stretched water from molecular dynamics simulations
• Water-like anomalies as a function of tetrahedrality
• Thermodynamics of Fluid Polyamorphism
• Anomalous Behavior in the Nucleation of Ice at Negative Pressures
• The physics of Empty Liquids: from Patchy particles to Water
• Potential Energy Landscape of TIP4P/2005 water
• The stability-limit conjecture revisited
• Hydrogen bond correlated percolation in a supercooled water monolayer as a hallmark of the critical region
• Water above spinodal
• Isotope effect on the anomalies of water: a corresponding states analysis
• Interfacial Properties of Fluids Exhibiting Liquid Polyamorphism and Water-Like Anomalies
• Effect of dissolved salt on the anomalies of water at negative pressure
• Water at negative pressure: Nuclear quantum effects
• Minimal microscopic model for liquid polyamorphism and water-like anomalies
• Statistical mechanical theory of liquid water
• Effects of compressibility and wetting on the liquid-vapor transition in a confined fluid