Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 20 27.3 21.7 18.7 20 27.3 21.7 18.7 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Leaching of coarse solid lumps is also termed as Decoction Dissolution Percolation Agitation and settling Decoction Dissolution Percolation Agitation and settling ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower) (G.a)/FG F/(FG.a) L/(FG.G) FG/(G.a) (G.a)/FG F/(FG.a) L/(FG.G) FG/(G.a) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Depend on saturated boiling point; may increase or decrease Increase Remains same Decrease Depend on saturated boiling point; may increase or decrease Increase Remains same Decrease ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged Less number of trays are required ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The recovery of pencillin from the acidified fermentation broth is done by Liquid extraction Evaporation Absorption Distillation Liquid extraction Evaporation Absorption Distillation ANSWER DOWNLOAD EXAMIANS APP
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