Scaled Equation of State for Supercooled Water near the Liquid-Liquid Critical Point

Fuentevilla, D. A.; Анисимов, М. А.

doi:10.1103/physrevlett.97.195702

Cited by 116 publications

(53 citation statements)

References 32 publications

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“…Extrapolation of these dependencies into the experimentally inaccessible supercooled region allows the location of the liquid-liquid transition. [88][89][90] However, such an extrapolation is rather approximate and depends on the equation of state used (Table 1). Additionally, the number of liquid-liquid transitions must be imposed in such analysis.…”

Section: The Search For the Liquid-liquid Transitions Of Water: Expermentioning

confidence: 99%

Multiple Phases of Liquid Water

2008

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The history of the study of the anomalies of liquid water, from the 17th century up to the present, is reviewed and the current view on the origin of these anomalies is summarized. The hypothesis of the multiple liquid-liquid transitions of water in the supercooled region is consistent with the available experimental and simulation data and provides physical explanation of water behavior in a wide thermodynamic range. The general character of the liquid-liquid transitions of fluids is discussed and the remaining questions are formulated.

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Section: The Search For the Liquid-liquid Transitions Of Water: Expermentioning

confidence: 99%

Multiple Phases of Liquid Water

2008

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“…In this work we concentrated on reviewing the evidence for changes in dynamic transport properties, such as diffusion constant and relaxation time. Additional examples include: (1) a breakdown of the Stokes-Einstein relation for ToT W ðPÞ [74][75][76][77][78][79], (2) systematic changes in the static structure factor SðqÞ and the corresponding pair correlation function gðrÞ revealing that for ToT W ðPÞ the system more resembles the structure of LDL than HDL, (3) appearance for ToT W ðPÞ of a shoulder in the dynamic structure factor Sðq; oÞ at a frequency o % 60 cm À1 % 2 THz [51], (4) rapid increase in hydrogen bonding degree for ToT W ðPÞ [80,81], (5) a minimum in the density at low temperature [82], and (6) a scaled equation of state near the critical point [83]. It is important to know how general a given phenomenon is, such as crossing the Widom line which by definition is present whenever there is a critical point.…”

Section: Discussionmentioning

confidence: 99%

The puzzling unsolved mysteries of liquid water: Some recent progress

Stanley

Kumar

et al. 2007

Physica A: Statistical Mechanics and its Applications

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Water is perhaps the most ubiquitous, and the most essential, of any molecule on earth. Indeed, it defies the imagination of even the most creative science fiction writer to picture what life would be like without water. Despite decades of research, however, water's puzzling properties are not understood and 63 anomalies that distinguish water from other liquids remain unsolved. We introduce some of these unsolved mysteries, and demonstrate recent progress in solving them. We present evidence from experiments and computer simulations supporting the hypothesis that water displays a special transition point (which is not unlike the ''tipping point'' immortalized by Malcolm Gladwell). The general idea is that when the liquid is near this ''tipping point,'' it suddenly separates into two distinct liquid phases. This concept of a new critical point is finding application to other liquids as well as water, such as silicon and silica. We also discuss related puzzles, such as the mysterious behavior of water near a protein. r

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“…The concept of WL came to the fore in the last few years where it was extensively considered in supercooled water in connection with the possible existence of a liquid-liquid transition terminating in a second critical point [11][12][13][14][15][16][17][18][19][20][21][22] .…”

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confidence: 99%

Widom line and dynamical crossovers as routes to understand supercritical water

2014

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Supercritical water is fundamental in many fields of applications and a precise characterization of the supercritical state is of uttermost importance for this liquid. In a fluid, when moving from the critical point into the single-phase region, the thermodynamic response functions show maxima reminiscent of the critical divergence. Here we study the thermodynamic properties of water in the supercritical region by analysing both available experimental data and our computer simulation results. We find that the lines connecting the maxima of the response functions converge on approaching the critical point in a single line, the Widom line. We further show that the Widom line coincides with a crossover from a liquid-like to a gas-like behaviour clearly visible in the transport properties. These thermodynamic and dynamic features show that the supercritical state in water is far more complex than what was so far believed, indicating a new perspective in the characterization of the thermodynamics of this state.

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Scaled Equation of State for Supercooled Water near the Liquid-Liquid Critical Point

Cited by 116 publications

References 32 publications

Multiple Phases of Liquid Water

Multiple Phases of Liquid Water

The puzzling unsolved mysteries of liquid water: Some recent progress

Widom line and dynamical crossovers as routes to understand supercritical water

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