Mass Transfer CO₂ can be absorbed by Cold Ca(OH)₂ Hot cupric oxide Heated charcoal Alumina Cold Ca(OH)₂ Hot cupric oxide Heated charcoal Alumina ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is 10 100 5 1 10 100 5 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The suitable evaporator for concentration of foaming liquids is a __________ evaporator. Falling film Short tube Vacuum Long tube Falling film Short tube Vacuum Long tube ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase. Both A & B Gas Liquid Neither A nor B Both A & B Gas Liquid Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 6.89 8.89 8.25 10 6.89 8.89 8.25 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle All of these ANSWER DOWNLOAD EXAMIANS APP