Mass Transfer Inside the distillation column, the Liquids are not always at their bubble points None of these Pressure increases gradually from bottom to the top of the column Driving force for the vapour flow is the pressure drop Liquids are not always at their bubble points None of these Pressure increases gradually from bottom to the top of the column Driving force for the vapour flow is the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? Inorganic solids Rag paper Bamboo Anthracite coal Inorganic solids Rag paper Bamboo Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are Parallel Both A & B Straight Neither A nor B Parallel Both A & B Straight Neither A nor B 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
Mass Transfer The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T T1.5 √T T3 T T1.5 √T T3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when Saturated feed is not used A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different ANSWER DOWNLOAD EXAMIANS APP
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