In the Random Walk Derivation of Fick’s Second Law, the Diffusion

Multiple Choice

In the random walk derivation of Fick’s Second Law, the diffusion coefficient was equated to

A) $\lambda^{2} / 2 t_{c}$
B) kt / $\beta$
C) $\lambda$ / t_c
D) $\lambda^{2}$ / <v>
E) t_c / $\lambda$