where n, z, [mu] refer to the number of charge carriers, the ionic charge and the ionic mobility
Diffusion coefficients are determined by separate calculations of net ionic mobility
and gas phases.
Graphically,electrical resistivity readings are increase with a decreasing moisture content, reason being for a low soil moisture content there is less ionic mobility
of electrons and hence higher the resistance.
Moelwn-Hughes, In Physical Chemistry, Born's Theory of The Ionic Lattice, Ionic Mobility
at infinite dilution, the Relation between Ionic Mobilities and the Coefficient of Diffusion of Electrolyte, Pergamon Press, p.
The effect of increases of conductivity CMC-AC could be due to the enhancement of ionic mobility
and the number of charge carrier or free ions [18, 22, 23].
Where q, [bar.[mu]], n, and E represent the electronic charge, the average ionic mobility
, the density of the given ion, and the electric field respectively, and [v.sub.d] = [bar.[mu]]E denotes the drift velocity.
In (9)-(11) [[beta].sub.s] is ionic Stern-plane mobility, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] are ionic mobility
of [Na.sup.+], ionic mobility
of H+, ionic mobility
of [Cl.sup.-], and ionic mobility
of O[H.sup.-] in the solution, respectively, and [c.sub.Prot] is proton surface conductance.
The increase of amorphous area will improve ionic mobility
and thus enhance the ionic conductivity of polymer electrolyte at room temperature.
where [phi] is the porosity of the material, z is the valence of the counter ions, and [beta] is the equivalent ionic mobility
for the surface electrical conduction process ([m.sup.2]/s.V).
If the particles become even smaller, the inter-particulate voids can become so tight that contact between the electrolyte and electrode becomes restricted rather than expanded, hindering ionic mobility
To tackle this problem, one of the best approaches is replacing of another metal/metal oxide into the ceria lattice thus facilitating the formation of composite oxides and replacement of cerium ions by cations of different size and/or charge modifies ionic mobility
within the lattice ensuing in the formation of a defective fluorite structured solid solution.