Mass Transfer Azeotropic distillation is employed to separate Constant boiling mixture Mixture with very high relative volatility Heat sensitive materials High boiling mixture Constant boiling mixture Mixture with very high relative volatility Heat sensitive materials High boiling mixture ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line) L/mG G/mL ML/G LG/m L/mG G/mL ML/G LG/m ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of L/mG ratio for economical absorption operation ranges from 0.5 to 0.8 0.8 to 1.2 2.5 to 3.5 1.25 to 2.0 0.5 to 0.8 0.8 to 1.2 2.5 to 3.5 1.25 to 2.0 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.9 0.25 0.5 0.7 0.9 0.25 0.5 0.7 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can not be increased by Reducing the humidity of entering air Lowering the barometric pressure None of these Increasing the air velocity over the wet surfaces Reducing the humidity of entering air Lowering the barometric pressure None of these Increasing the air velocity over the wet surfaces ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL/DA² KL²/DA √(KL².DA) KL².DA KL/DA² KL²/DA √(KL².DA) KL².DA ANSWER DOWNLOAD EXAMIANS APP
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