Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 3.97 1 0.24 600 3.97 1 0.24 600 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is Always < 1 G/L None of these L/G Always < 1 G/L None of these L/G 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) G/mL LG/m L/mG ML/G G/mL LG/m L/mG ML/G 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 0.7 0.5 0.9 0.25 0.7 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the concentration of the adsorbate, the integral heat of adsorption Decreases May increase or decrease ; depends on the type of adsorbate Remains unchanged Increases Decreases May increase or decrease ; depends on the type of adsorbate Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture. Bound Equilibrium Unbound Free Bound Equilibrium Unbound Free ANSWER DOWNLOAD EXAMIANS APP
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