Mass Transfer Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in Both A & B Neither A nor B Viscosity with concentration Degree of ideality of the solution Both A & B Neither A nor B Viscosity with concentration Degree of ideality of the solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following solutions will follow Raoult's law most closely? A solution of benzene, toluene and oxylene 35% solution of camphor in water 35% solution of NH₃ in water A solution of polar organic compounds (not of homologs of a series) A solution of benzene, toluene and oxylene 35% solution of camphor in water 35% solution of NH₃ in water A solution of polar organic compounds (not of homologs of a series) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 1 0.2 0.4 1 0.2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Total reflux in a distillation operation requires minimum Reboiler load Condenser load All of these Number of plates Reboiler load Condenser load All of these Number of plates ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Hatta number is important in Binary distillation Gas absorption without chemical reaction Multicomponent distillation Gas absorption with chemical reaction Binary distillation Gas absorption without chemical reaction Multicomponent distillation Gas absorption with chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Decreases Remains unaffected Passes through a maximum Increases Decreases Remains unaffected Passes through a maximum Increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS