Related Experiment Video
Updated: Apr 9, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
Published on: September 7, 2018
Dynamics of low-temperature water are driven by electrostatics
Mohammad Mehdi Pirnia1, Dmitry V Matyushov2
1School of Molecular Sciences, Arizona State University, P.O. Box 871504, Tempe, Arizona 85287-1504, USA.
Abstract:
Non-Gaussian dynamics in low-temperature liquids are assigned to spatial fluctuations of relaxation times and linear transport coefficients (dynamic heterogeneity). In contrast, molecular dynamics simulations of SPC/E water assign non-Gaussian dynamics to electrostatic intermolecular interactions growing in prominence with lowering temperature. Translational non-Gaussian parameters and rotational/translational relaxation times follow master curves produced by either changing temperature or the liquid's dipole moment. Static and dynamic compensation relations found for bulk water are assigned to the separation of time scales between density and electrostatic fluctuations.
Related Concept Videos
Theory of Strong Electrolytes
The Electrical Double Layer
DC Battery
Electrochemical Systems
Electrostatic Boundary Conditions in Dielectrics
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity....
Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...

