Mass Transfer A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? Flow rate of inlet air Temperature of the solid Humidity of inlet air Relative humidity of outlet air Flow rate of inlet air Temperature of the solid Humidity of inlet air Relative humidity of outlet air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Low viscosity absorbent is preferred for reasons of Low pressure drop on pumping Improved flooding characteristics All of these Rapid absorption rates and good heat transfer characteristics Low pressure drop on pumping Improved flooding characteristics All of these Rapid absorption rates and good heat transfer characteristics ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 10 8.89 6.89 8.25 10 8.89 6.89 8.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative humidity is the ratio of the Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature None of these Partial pressure of the vapour to the vapour pressure of the liquid at room temperature Actual humidity to saturation humidity Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature None of these Partial pressure of the vapour to the vapour pressure of the liquid at room temperature Actual humidity to saturation humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is Same as simple distillation Most useful for handling binary systems Same as differential distillation Used for multicomponent systems like crude refining Same as simple distillation Most useful for handling binary systems Same as differential distillation Used for multicomponent systems like crude refining ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of Vapour pressure of component A to that of component B Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure Vapour pressure of component A to that of component B Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure ANSWER DOWNLOAD EXAMIANS APP
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