The Stokes radius or Stokes–Einstein radius of a solute is the radius of a hard sphere that diffuses at the same rate as that solute. Named after George Gabriel Stokes, it is closely related to solute mobility, factoring in not only size but also solvent effects. A smaller ion with stronger hydration, for example, may have a greater Stokes radius than a larger ion with weaker hydration. This is because the smaller ion drags a greater number of water molecules with it as it moves through the solution.[1]
Stokes radius is sometimes used synonymously with effective hydrated radius in solution.[2] Hydrodynamic radius, RH, can refer to the Stokes radius of a polymer or other macromolecule.
^Atkins, Peter; Julio De Paula (2006). Physical Chemistry (8 ed.). Oxford: Oxford UP. p. 766. ISBN 0-7167-8759-8.
^Atkins, Peter; Julio De Paula (2010). Physical Chemistry (9 ed.). Oxford: Oxford UP.
The Stokesradius or Stokes–Einstein radius of a solute is the radius of a hard sphere that diffuses at the same rate as that solute. Named after George...
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In fluid dynamics, Stokes problem also known as Stokes second problem or sometimes referred to as Stokes boundary layer or Oscillating boundary layer...
electrolytes, the Debye length λ D {\displaystyle \lambda _{\rm {D}}} (Debye radius or Debye–Hückel screening length), is a measure of a charge carrier's net...
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