Diffusion with a heterogeneous chemical reaction

Input(s)

$\boldsymbol{D}_{\boldsymbol{A} \boldsymbol{B}}$: Diffusivity $\left(\mathrm{ft}^{2} / \mathrm{s}\right)$

$\boldsymbol{\delta}$: Position of Catalytic Film $(\mathrm{cm})$

$\boldsymbol{x}_{\boldsymbol{a}}$: Main Stream Concentration $\left(\mathrm{mol} / \mathrm{ft}^{3}\right)$

c: Total Molar Concentration $\left(\mathrm{mol} / \mathrm{ft}^{3}\right)$

Output(s)

N: Molar Flux (mol/ft $\left.\mathrm{ft}^{2} \mathrm{~s}\right)$

Formula(s)

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 18, Page: 553.