Mass Transfer Stacked packing compared to dumped packing Gives higher pressure drop Provides poorer contact between the fluids Both A & B Gives lower pressure drop Gives higher pressure drop Provides poorer contact between the fluids Both A & B Gives lower pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same. Both A & B Neither A nor B Constant rate Unsaturated surface Both A & B Neither A nor B Constant rate Unsaturated surface ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Phase change of the solute as it dissolves in the solvent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the Temperature rises Pressure rises Temperature falls Pressure falls Temperature rises Pressure rises Temperature falls Pressure falls ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pore size of the molecular seive 5A is __________ mm. 5 50 0.5 0.05 5 50 0.5 0.05 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ ANSWER DOWNLOAD EXAMIANS APP
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