Mass Transfer As the reflux ratio decreases, the None of these Column diameter increases Number of plates increases Separation becomes more efficient None of these Column diameter increases Number of plates increases Separation becomes more efficient ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Increases tray efficiency Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Reduces pressure drop Increases tray efficiency Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Reduces pressure drop 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 51 min 71 min 15 min 94 min 51 min 71 min 15 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture. Unbound Bound Critical Free Unbound Bound Critical Free ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory. Penetration None of these Film Surface renewal Penetration None of these Film Surface renewal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative volatility does not change appreciably with the change in Vapour pressure of either component Temperature None of these Total pressure Vapour pressure of either component Temperature None of these Total pressure ANSWER DOWNLOAD EXAMIANS APP
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