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* There was an unfortunate typo regarding the surface area of a sphere in the exam. If you used the incorrect version in the exam it will certainly not count against you: we will work with either the incorrect version, or the correct formula, which is of course \(A = 4 \pi r^2\). | * There was an unfortunate typo regarding the surface area of a sphere in the exam. If you used the incorrect version in the exam it will certainly not count against you: we will work with either the incorrect version, or the correct formula, which is of course \(A = 4 \pi r^2\). | ||
:One must use the area of particle and relate it to the equivalent area of the sphere. This is because in drying, the heat and mass transfer to dry the solid takes places at the ''surface'' of the particle, not in the ''volume'' of the particle. | :One must use the area of particle and relate it to the equivalent area of the sphere. This is because in drying, the heat and mass transfer to dry the solid takes places at the ''surface'' of the particle, not in the ''volume'' of the particle. Please the wrap-up class video at minute 18:00 for an explanation why. | ||
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Revision as of 18:52, 15 December 2012
Separation Processes: CHE 4M3
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