Mass Transfer Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in All of these Large number of trays Large minimum liquid to gas (L/G) ratio Decreased solute solubility All of these Large number of trays Large minimum liquid to gas (L/G) ratio Decreased solute solubility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T² √T T⁴ T T² √T T⁴ T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unit of molal diffusivity is Gm moles/cm² . sec Gm moles/cm². sec Gm moles/cm. sec Cm²/sec gm . mole Gm moles/cm² . sec Gm moles/cm². sec Gm moles/cm. sec Cm²/sec gm . mole 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 None of these Dehumidified Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature None of these Dehumidified Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ? Liquid side Both liquid and gas side Gas side Interfacial Liquid side Both liquid and gas side Gas side Interfacial ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms A total condenser is used ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS