Measured specific rates of diffusion controlled reactions of solvated electron, e, with phenanthrene in 1-alkanols at 25掳C are analyzed for the Smoluchowski equation. The diffusion coefficients of es are calcu-lated from the Stokes-Einstein equation, where es is treated as a normal anion. ...
derivation of the expression for the diffusion coefficient of a colloidal particle, an equation to which we today refer by as the Stokes-Einstein law. Bu... R Mezzenga 被引量: 0发表: 2021年 A microscopic model of the Stokes–Einstein relation in arbitrary dimension The Stokes-Einstein relation...
Molecular dynamics simulations of high density hard sphere fluids clearly show a breakdown of the Stokes-Einstein equation (SE). This result has been conjectured to be due to the presence of mobile particles, i.e., ones which have the propensity to "hop" distances that are integer multiples ...
thedifferentmoleculesaswellastheirpropershapes.Comparisonwithexperimentsforvariationsindiffusion coefficientsovertimerevealsverysimilartrends. Conclusions:WearguethatthestandardStokes-Einstein’sequationisinsufficienttounderstandthetemporal variationsindiffusionwhentryingtounderstandtheaggregationbehaviorofAb42proteins.Our...
The simulation results demonstrate that the diffusion coefficient for rigid nanoparticles in water is found to be highly consistent with the Einstein–Stokes equation, with slight deviation only found for nanoparticle with a radius less than 1nm. For nanobubbles, including both methane and vacuum ...
Influence of organic solutes on the self-diffusion of water as studied by nuclear magnetic resonance spectroscopy The solute diffusion coefficient at infinite dilution agrees with predictions of the Stokes–Einstein equation for the hydrated solute particle... PO Eriksson,G Lindblom,EE Burnell,... -...
{3})\). Based on the Debye model,Drcan also be determined by solving the rotational diffusion equation for the reorientation of the molecular dipole as\({D}_{{\rm{r}}}=1\)/\([{\tau }_{\ell }\ell (\ell +1)]\), where\({\tau }_{\ell }\)is the rotational relaxation time...
Swelling-time curves were constructed to estimate the diffusion coefficients in the oil from the unsteady state diffusion equation. 4. Measurement procedure and analysis for oil swelling Approximately 2 cm3 of oil was placed in the column with a measuring scale, and the mass of the oil was ...
Ionic liquidsFerroceneDiffusion coefficientCyclic voltammetryStokes-Einstein equationApparent capacitive characteristics of imidazolium-based room-temperature ionic liquids are justified by means of cyclic voltammetry and impedance techniques using the graphitic carbon paste electrode as a probe in virtue of its ...
Stokes–Einstein equationThe Stokes–Einstein relationship relating the self-diffusion coefficient with the size of a diffusing particle (a hydrodynamic radius) breaks down in case of small molecules. We present a novel method extending the range of validity of the Stokes–Einstein relationship by ...