a) Starting with Fick's Law of diffusion, derive the following equation for gas phase molar flux...

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a) Starting with Fick's Law of diffusion, derive the following equation for gas phase molar flux of material A diffusing through a stagnant layer of gaseous material B: NA = Po DA total AB RT Z₂-21 PAI-PA2 PBM A1 b) Show how the diffusivity DAB may be calculated if a dense sphere of a volatile solid A is suspended in a layer of static gas B. a) Starting with Fick's Law of diffusion, derive the following equation for gas phase molar flux of material A diffusing through a stagnant layer of gaseous material B: NA = Po DA total AB RT Z₂-21 PAI-PA2 PBM A1 b) Show how the diffusivity DAB may be calculated if a dense sphere of a volatile solid A is suspended in a layer of static gas B.

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