## Wikipedia - Relazione di Einstein-Smoluchowski Einstein equation

https://doi.org/10.1351/goldbook.ET06759
In its most general form, the @E01914@ equation relates the atomic @M03955@ $$b_{i}$$ of a species $$i$$ to the @D01719@ $$D_{i}$$: i.e., $$D_{i}=k\ T\ b_{i}$$.
Source:
PAC, 1999, 71, 1307. (Definitions of Terms for Diffusion in the Solid State) on page 1314 [Terms] [Paper]