Mass Transfer High pressure at the bottom of a distillation tower handling heat sensitive materials results in Very efficient operation Thermal decomposition of bottoms Increased relative volatility Erosion of the tower Very efficient operation Thermal decomposition of bottoms Increased relative volatility Erosion of the tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 94 min 15 min 71 min 51 min 94 min 15 min 71 min 51 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages Remain unchanged Can either increase or decrease, depends on the system Decrease Increase Remain unchanged Can either increase or decrease, depends on the system Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation columns, the number of bubble caps per tray primarily depends upon the Allowable liquid velocity Feed composition Allowable gas and liquid velocities Allowable gas velocity Allowable liquid velocity Feed composition Allowable gas and liquid velocities Allowable gas velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. Viscosity Neither A nor B Degree of ideality Both A & B Viscosity Neither A nor B Degree of ideality Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If moisture content of solid on dry basis is X, then the same on wet basis is (X + 1)/X X/(X - 1) (X - 1)/X X/(X + 1) (X + 1)/X X/(X - 1) (X - 1)/X X/(X + 1) ANSWER DOWNLOAD EXAMIANS APP
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