Mass Transfer If f = moles of vapour present per mole of feed, then the slope of feed line is - (f - 1)/f (1 - f)/f - 1/f - f/(1 - f) - (f - 1)/f (1 - f)/f - 1/f - f/(1 - f) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 3.97 1 600 0.24 3.97 1 600 0.24 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) 1/√P √P P 1/P 1/√P √P P 1/P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 10 6.89 8.25 8.89 10 6.89 8.25 8.89 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Increases Passes through a maximum Decreases Remains unaffected Increases Passes through a maximum Decreases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The caking of crystals can be prevented by Coating the product with inert material Maintaining low critical humidity Both A and C Maintaining high critical humidity Coating the product with inert material Maintaining low critical humidity Both A and C Maintaining high critical humidity ANSWER DOWNLOAD EXAMIANS APP
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