Mass Transfer The binary diffusivity in gases and liquids vary respectively as √T and T3/2 T and T3/2 T3/2 and T T3/2 and √T √T and T3/2 T and T3/2 T3/2 and T T3/2 and √T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Total reflux in a distillation operation requires minimum All of these Reboiler load Number of plates Condenser load All of these Reboiler load Number of plates Condenser load ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is Always < 1 L/G G/L None of these Always < 1 L/G G/L None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For gas absorption, low viscosity solvents are preferred, because of their All of these Rapid absorption rates Better flow characteristics Low pumping pressure drop All of these Rapid absorption rates Better flow characteristics Low pumping pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of mass transfer is not dependent upon the Interfacial surface exposed between the phases None of these Both A & B Degree of dispersion of one fluid in the other Interfacial surface exposed between the phases None of these Both A & B Degree of dispersion of one fluid in the other 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) (G.a)/FG L/(FG.G) F/(FG.a) FG/(G.a) (G.a)/FG L/(FG.G) F/(FG.a) FG/(G.a) ANSWER DOWNLOAD EXAMIANS APP
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