Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the None of these Integral heat of adsorption Differential heat of adsorption Heat of wetting None of these Integral heat of adsorption Differential heat of adsorption Heat of wetting ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Selectivity of the solvent used in solvent extraction should be < 1 1 > 1 < 1 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 3.97 0.24 600 1 3.97 0.24 600 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is 0.56 1.56 2 1 0.56 1.56 2 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At minimum reflux ratio for a given separation Number of plates is zero Number of plates is infinity Separation is most efficient Minimum number of the theoretical plates is required Number of plates is zero Number of plates is infinity Separation is most efficient Minimum number of the theoretical plates is required ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS