Mass Transfer Unit operation involved in the prilling of urea is Crystallisation Evaporation Drying Both B and C Crystallisation Evaporation Drying Both B and C ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flights in a rotary dryer are provided to Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas Increase the residence time of the solid None of these Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas Increase the residence time of the solid None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower) FG/(G.a) L/(FG.G) F/(FG.a) (G.a)/FG FG/(G.a) L/(FG.G) F/(FG.a) (G.a)/FG ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent Decreases Increases Decreases linearly Remains unaffected Decreases Increases Decreases linearly Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Bubble cap tower Wetted wall tower Grid tray tower Perforated tray tower Bubble cap tower Wetted wall tower Grid tray tower Perforated tray tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of L/mG ratio for economical absorption operation ranges from 0.8 to 1.2 0.5 to 0.8 1.25 to 2.0 2.5 to 3.5 0.8 to 1.2 0.5 to 0.8 1.25 to 2.0 2.5 to 3.5 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS