Transcription of MASS DIFFUSION - ¡Bienvenidos!
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mass DIFFUSION page 1 mass DIFFUSION mass transfer .. 1 What it is and what it isn't .. 1 What it is for. Applications .. 2 How to study it. Similarities and differences between mass transfer and Heat transfer .. 2 Forces and fluxes .. 4 Specifying composition. Nomenclature .. 4 Specifying boundary conditions for composition .. 6 Species balance equation .. 9 DIFFUSION rate: Fick's law .. 10 The DIFFUSION equation for mass transfer .. 14 Some analytical solutions to mass DIFFUSION .. 15 Instantaneous point-source .. 15 Semi-infinite planar DIFFUSION .. 16 DIFFUSION through a wall .. 17 Summary table of analytical solutions to DIFFUSION 19 Evaporation rate .. 22 References .. 23 mass transfer WHAT IT IS AND WHAT IT ISN'T The subject of mass transfer studies the relative motion of some chemical species with respect to others ( separation and mixing processes), driven by concentration gradients (really, an imbalance in chemical potential, as explained in Entropy).
Mass diffusion page 2 As usual, the basic study first focuses on homogeneous nonreacting systems with welldefined - - boundaries (not only in Mass Transfer, but in …
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