Mass Transfer The rate of solid-liquid extraction is limited by the Phase change of the solute as it dissolves in the solvent Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases. Physical properties Interfacial area Chemical properties Degree of turbulence Physical properties Interfacial area Chemical properties Degree of turbulence ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower. Bubble cap Perforated tray Wetted wall Packed Bubble cap Perforated tray Wetted wall Packed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steam distillation is not recommended to be used, if the Azeotropic mixture is to be separated and the final product is miscible with water Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Liquids decompose, if distilled directly at atmospheric pressure Azeotropic mixture is to be separated and the final product is miscible with water Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Liquids decompose, if distilled directly at atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption, both the operating and equilibrium lines will be straight for Dilute solutions and isothermal operation None of these Isothermal operation Dilute solutions Dilute solutions and isothermal operation None of these Isothermal operation Dilute solutions 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) F/(FG.a) FG/(G.a) (G.a)/FG L/(FG.G) F/(FG.a) FG/(G.a) (G.a)/FG L/(FG.G) ANSWER DOWNLOAD EXAMIANS APP
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