Mass Transfer The suitable evaporator for concentration of foaming liquids is a __________ evaporator. Long tube Vacuum Short tube Falling film Long tube Vacuum Short tube Falling film ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C. -25 > 25 < 25 25 -25 > 25 < 25 25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified at constant wet bulb temperature Dehumidified None of these Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature Dehumidified None of these Humidified with wet bulb temperature decreasing ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is 0.54 1.04 1.94 1.24 0.54 1.04 1.94 1.24 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed bed absorption column, the channelling will be noted by the None of these Sharp rise in pressure drop Sharp drop in pressure drop Increase in flow rate None of these Sharp rise in pressure drop Sharp drop in pressure drop Increase in flow rate ANSWER DOWNLOAD EXAMIANS APP
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