Mass Transfer Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the Volumetric diffusivity Mass transfer co-efficient Kinematic viscosity Thermal diffusivity Volumetric diffusivity Mass transfer co-efficient Kinematic viscosity Thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The solvent used in liquid-liquid extraction should have __________ less than one. Both A & B Selectivity Neither A nor B Distribution co-efficient Both A & B Selectivity Neither A nor B Distribution co-efficient ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number. Lewis Sherwood Grashoff None of these Lewis Sherwood Grashoff None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is Same as simple distillation Same as differential distillation Used for multicomponent systems like crude refining Most useful for handling binary systems Same as simple distillation Same as differential distillation Used for multicomponent systems like crude refining Most useful for handling binary systems ANSWER DOWNLOAD EXAMIANS APP
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