Mass Transfer Relative humidity is the ratio of the Partial pressure of the vapour to the vapour pressure of the liquid at room temperature None of these Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature Actual humidity to saturation humidity Partial pressure of the vapour to the vapour pressure of the liquid at room temperature None of these Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature Actual humidity to saturation humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area 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 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 None of these Dehumidified ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Design calculation for multiple component distillation is done by Mccabe-Thiele method Tray to tray calculations Ponchon-Savarit method Enthalpy concentration method Mccabe-Thiele method Tray to tray calculations Ponchon-Savarit method Enthalpy concentration method ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect Neither the product composition nor the fraction vaporised The fraction vaporised but not the product composition The product composition as well as the fraction vaporised The product composition but not the fraction vaporised Neither the product composition nor the fraction vaporised The fraction vaporised but not the product composition The product composition as well as the fraction vaporised The product composition but not the fraction vaporised ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.9 0.7 0.5 0.25 0.9 0.7 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
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