Mass Transfer To get high tray efficiency Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low Liquid entrainment should be severe Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Gas velocity should be very low Liquid entrainment should be severe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line) LG/m L/mG ML/G G/mL LG/m L/mG ML/G G/mL ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Selectivity of the solvent used in solvent extraction should be > 1 < 1 1 > 1 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system) Decreases Increases Linearly Increases Remains unaffected Decreases Increases Linearly Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same. Mass and momentum Heat, momentum and mass Heat and mass Heat and momentum Mass and momentum Heat, momentum and mass Heat and mass Heat and momentum ANSWER DOWNLOAD EXAMIANS APP
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