Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) √T T⁴ T T² √T T⁴ T T² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available 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) 8.25 10 6.89 8.89 8.25 10 6.89 8.89 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At 750°K and 1 atm, the approximate value of Schmidt number for air is 10 1 0.1 0.01 10 1 0.1 0.01 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture. Critical Unbound Bound Free Critical Unbound Bound Free ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption compared to physical absorption has Lower capacity of the solvent for the solute gas None of these Increased utilisation of stagnant zones of the liquid phase Lower adsorption rate Lower capacity of the solvent for the solute gas None of these Increased utilisation of stagnant zones of the liquid phase Lower adsorption rate ANSWER DOWNLOAD EXAMIANS APP
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