Diffusion Into a falling liquid film (gas absorption)

Input(s)

c: Concetration $\left(\mathrm{mol} / \mathrm{cm}^{3}\right)$

$D_{A B}$: Diffusivity $\left(\mathrm{cm}^{2} / \mathrm{s}\right)$

$v_{\max }$: Velocity of Dropping Particle $(\mathrm{cm} / \mathrm{s})$

z: Height of Column $(\mathrm{cm})$

Output(s)

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

Formula(s)

$$ \mathrm{N}=\mathrm{c} *\left(\frac{\mathrm{D}_{\mathrm{AB}} * \mathrm{v}_{\max }}{\pi * \mathrm{z}}\right)^{0.5} $$

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley \& Sons, Chapter: 18, Page: 560 .