Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 136, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3690497
Keywords
critical points; crystallisation; specific heat; water
Funding
- Division of Chemistry of the US National Science Foundation [CHE-1012052]
- University of Maryland
- J.M. Burgerscentrum in the Netherlands
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1012052] Funding Source: National Science Foundation
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We review the available experimental information on the thermodynamic properties of supercooled water and demonstrate the possibility of modeling these thermodynamic properties on a theoretical basis. We show that by assuming the existence of a liquid-liquid critical point in supercooled water, the theory of critical phenomena can give an accurate account of the experimental thermodynamic-property data up to a pressure of 150 MPa. In addition, we show that a phenomenological extension of the theoretical model can account for all currently available experimental data in the supercooled region, up to 400 MPa. The stability limit of the liquid state and possible coupling between crystallization and liquid-liquid separation are also discussed. It is concluded that critical-point thermodynamics describes the available thermodynamic data for supercooled water within experimental accuracy, thus establishing a benchmark for further developments in this area. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3690497]
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