Mass Transfer Which of the following provides maximum contact surface for a liquid-vapour system? Bubble-cap plate column Packed tower Wetted wall column Seive-plate column Bubble-cap plate column Packed tower Wetted wall column Seive-plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are porous Silica Alumina Synthetic zeolites crystals/metal alumino-silicates None of these Silica Alumina Synthetic zeolites crystals/metal alumino-silicates None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The reciprocal of stripping factor is termed as Murphree efficiency Absorption factor Relative volatility Selectivity index Murphree efficiency Absorption factor Relative volatility Selectivity index ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 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 2 1.56 0.56 1 2 1.56 0.56 1 ANSWER DOWNLOAD EXAMIANS APP
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