Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 3 to 4 2.5 to 3 1.2 to 1.5 5 3 to 4 2.5 to 3 1.2 to 1.5 5 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 < 6:1 > 8:1 < 8 : 1 > 4 :1 < 6:1 > 8:1 < 8 : 1 > 4 :1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a counter-current extractor, as the axial mixing increases, the extraction efficiency Increases Decreases Depends on the pressure of the system Remains unchanged Increases Decreases Depends on the pressure of the system Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying of a solid, the critical moisture content increases with Increased drying rate Both B and C Increased thickness of the solid Decreased drying rate Increased drying rate Both B and C Increased thickness of the solid Decreased drying rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve) S₁ x S₂ S₂/S₁ S₁ - S₂ S₁/S₂ S₁ x S₂ S₂/S₁ S₁ - S₂ S₁/S₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Reduces pressure drop Decreases tray efficiency Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
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