Mass Transfer In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit) Neither A nor B Both A & B Straight Parallel Neither A nor B Both A & B Straight Parallel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To remove all the moisture from a wet solid it requires exposure to __________ air. Perfectly dry High temperature Highly humid None of these Perfectly dry High temperature Highly humid None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flooding results in High gas velocity Good contact between the fluids High tray efficiency Low tray efficiency High gas velocity Good contact between the fluids High tray efficiency Low tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion occurs in case of Absorption Liquid-liquid extraction Leaching Binary phase distillation Absorption Liquid-liquid extraction Leaching Binary phase distillation 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 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 More number of trays are required and the residue composition is more dilute in methanol ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The dimension of diffusivity is same as that of the Velocity head Density Kinematic viscosity Molal concentration Velocity head Density Kinematic viscosity Molal concentration ANSWER DOWNLOAD EXAMIANS APP
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