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Molecular diffusion in gases
This document discusses molecular diffusion in gases through three parts. Part I introduces concepts like mass transfer, diffusion, convection and Fick's laws of diffusion. It also defines terms like mass concentration, molar concentration, mass fraction and mole fraction. Part II discusses different types of diffusion like equimolar counter diffusion and diffusion with convection. It also covers diffusion through varying cross-sectional areas. Part III describes experimental methods to determine diffusion coefficients for gases through experiments using two vessels connected by a capillary tube. It also briefly discusses multicomponent diffusion and mass transfer coefficients.
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