Mass Transfer Chemisorption (chemical adsorption) is Same as "Van der Waals" adsorption An irreversible phenomenon Characterised by adsorption of heat A reversible phenomenon Same as "Van der Waals" adsorption An irreversible phenomenon Characterised by adsorption of heat A reversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Liquid entrainment should be severe Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Time of contact between the two phases should be less Liquid entrainment should be severe Gas velocity should be very low ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature) Increases Decreases linearly Decreases Remains unchanged Increases Decreases linearly Decreases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Henry's law states that the Partial pressure is equal to the product of the mole fraction and total pressure Partial pressure of a component over a solution is proportional to the mole fraction in the vapour Vapour pressure is equal to the product of the mole fraction and total pressure Partial pressure of a component over a solution is proportional to its mole fraction in the liquid Partial pressure is equal to the product of the mole fraction and total pressure Partial pressure of a component over a solution is proportional to the mole fraction in the vapour Vapour pressure is equal to the product of the mole fraction and total pressure Partial pressure of a component over a solution is proportional to its mole fraction in the liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Bubble cap tower Grid tray tower Wetted wall tower Perforated tray tower Bubble cap tower Grid tray tower Wetted wall tower Perforated tray tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law Only liquid phase obeys Dalton's law Only vapor phase follows Raoult's law Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law Only liquid phase obeys Dalton's law Only vapor phase follows Raoult's law Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law ANSWER DOWNLOAD EXAMIANS APP
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