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

Simple item page
dc.contributor.advisorAnisimov, Mikhail Aen_US
dc.contributor.authorFuentevilla, Daphne Anneen_US
dc.contributor.departmentChemical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2007-09-28T15:03:17Z
dc.date.available2007-09-28T15:03:17Z
dc.date.issued2007-09-14en_US
dc.description.abstractThe second-critical-point scenario is one of the most popular explanations for the anomalous behavior of supercooled liquid water. According to this scenario, liquid water at ambient conditions is a "supercritical" ?uid that separates into two types of liquid water in the supercooled region. However, experimental confirmation is challenging. In this work we developed a scaled parametric equation of state, based on the principle of critical-point universality, to examine the second-critical-point scenario from a new direction. The equation of state, built on the growing evidence for liquid-liquid water separation, is universal in terms of theoretical scaling fields and belongs to the Ising-model universality class. The theoretical scaling fields are postulated to be analytical combinations of the physical fields, pressure and temperature. The equation of state enables us to accurately locate the "Widom line" (locus of stability minima) and determine that the critical pressure is considerably lower than predicted by computer simulations.en_US
dc.format.extent3915696 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/7398
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Chemicalen_US
dc.subject.pqcontrolledPhysics, Condensed Matteren_US
dc.subject.pquncontrolledwateren_US
dc.subject.pquncontrolledcritical phenomenaen_US
dc.subject.pquncontrolledequation of stateen_US
dc.subject.pquncontrolledcondensed matteren_US
dc.titleA Scaled Equation of State for the Liquid-Liquid Critical Point in Supercooled Wateren_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
umi-umd-4815.pdf
Size:
3.73 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Chemical and Biomolecular Engineering Theses and Dissertations