Mass Transfer Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer. Very much less Less than Same as More than Very much less Less than Same as More than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter > 8:1 < 6:1 < 8 : 1 > 4 :1 > 8:1 < 6:1 < 8 : 1 > 4 :1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Proportional to √D D/2a D/a Dependent on the Reynolds number Proportional to √D D/2a D/a Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At what value of reflux ratio, number of theoretical plates in a distillation column is minimum? < 1 ∞ 1 < 1 ∞ 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Provides poorer contact between the fluids Gives higher pressure drop Both A & B Gives lower pressure drop Provides poorer contact between the fluids Gives higher pressure drop Both A & B Gives lower pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Separation of two volatile liquids by distillation makes use of their Density difference Solubility Selectivity Relative volatility Density difference Solubility Selectivity Relative volatility ANSWER DOWNLOAD EXAMIANS APP
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