Diagrammatic Analysis of Nonhomogeneous Diffusion

Figure 2

Diagrams of solute diffusion between “” and “”: two models with four transitions (a), multipath models with six transitions (b), and a single-path model with six transitions (c). In each case, the “reference models” are employed to derive expressions for the diffusion coefficients of the “models” (see main text).

(a)

(b)

(c)