Estimation of self diffusivity at high density

Input(s)

a: Concentration $\left(\mathrm{g} \mathrm{mol}^{\mathrm{cm}} \mathrm{cm}^{3}\right)$

Daa: Prediction of Self-Diffusivity $(\mathrm{g} \mathrm{mol} / \mathrm{cm} \mathrm{s})$

cDaa $_{\boldsymbol{r}}$: Reduced Diffusivity ( $\mathrm{g} \mathrm{mol} / \mathrm{cm} \mathrm{s}$ )

Output(s)

$\boldsymbol{c D a a}_{\boldsymbol{c}}$: Critical Diffusivity $(\mathrm{g} \mathrm{mol} / \mathrm{cm} \mathrm{s})$

CDaa: Prediction of Self-Diffusivity $(\mathrm{g} \mathrm{mol} / \mathrm{cm} \mathrm{s})$

Formula(s)

$$ \begin{aligned} & \mathrm{cDaa}_{\mathrm{c}}=\frac{\mathrm{c} * \text { Daa }}{\mathrm{cDaa}_{\mathrm{r}}} \\ & \mathrm{CDaa}=\left(\mathrm{cDaa}_{\mathrm{c}}\right) *\left(\mathrm{cDaa}_{\mathrm{r}}\right) \end{aligned} $$

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley \& Sons, Chapter: 17, Page: 523.