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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
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A phase transition model in dual-amorphous water undergoing liquid-liquid transition
Peizhao Li1, Haibao Lu1, Yong-Qing Fu2
1Science and Technology on Advanced Composites in Special Environments Laboratory, Harbin Institute of Technology, Harbin 150080, People's Republic of China.
Summary
A new theoretical model explains liquid-liquid phase transitions in water, unifying temperature and electrolyte effects. This advances understanding of water
Area of Science:
- Condensed matter physics
- Physical chemistry
Background:
- Liquid-liquid phase transition (LLPT) in condensed water remains poorly understood, hindering insight into dual-amorphous water behaviors.
- Existing experimental and theoretical studies lack a widely accepted consensus on water's two-state LLPT.
Purpose of the Study:
- To propose a theoretical model elucidating homogeneous and inhomogeneous condensation from high-density liquid (HDL) to low-density liquid (LDL) water.
- To unify the coupling effects of temperature and electrolyte concentration on LLPT in pure and ionic water.
- To analyze the synergistic effects on viscosity, diffusion, and density during LLPT.
Main Methods:
- Utilized the Avrami equation to describe first-order phase transitions in water condensation.
- Incorporated Adam-Gibbs theory to characterize synergistic motion and relaxation behavior.
- Developed an analytical 2D cloud chart to visualize configurational entropy variations under electrostatic forces.
- Applied Stokes-Einstein relation and free volume theory to analyze diffusion coefficients and densities.
Main Results:
- The proposed model successfully unifies temperature and electrolyte concentration effects on LLPT.
- Constitutive relationships for viscosity, temperature, and electrolyte concentration were derived.
- Theoretical predictions were validated against experimental data from literature.
Conclusions:
- The developed theoretical framework accurately predicts physical property changes in dual-amorphous condensed water.
- This work offers significant advancements in understanding and predicting LLPT phenomena in water.
- The models provide a robust basis for future research in condensed water physics and chemistry.
Keywords:
Avrami equationcondensed water structurehomogeneous and inhomogeneous phasesliquid–liquid phase transitiontwo-state theoretical modelMore Related Videos
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