Mass Transfer With increase in temperature, the leaching rate increases because of the Increased diffusivity Decreased viscosity of liquid None of the listed here Both Decreased viscosity of liquid & Increased diffusivity Increased diffusivity Decreased viscosity of liquid None of the listed here Both Decreased viscosity of liquid & Increased diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives Low pressure drop and high hold up High pressure drop and low hold up High pressure drop and high hold up Low pressure drop and low hold up Low pressure drop and high hold up High pressure drop and low hold up High pressure drop and high hold up Low pressure drop and low hold up 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 ? Gas side Liquid side Interfacial Both liquid and gas side Gas side Liquid side Interfacial Both liquid and gas side ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.152 0.122 0.079 0.048 0.152 0.122 0.079 0.048 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske equation determines the Maximum number of ideal plates Optimum reflux ratio Minimum number of theoretical plates Height of the distillation column Maximum number of ideal plates Optimum reflux ratio Minimum number of theoretical plates Height of the distillation column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are Neither A nor B Both A & B Straight Parallel Neither A nor B Both A & B Straight Parallel ANSWER DOWNLOAD EXAMIANS APP
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