Mass Transfer Binary distillation involves the mass transfer by __________ at the gas-liquid interface. A counter diffusion at an almost equal molar rate Unidirectional diffusion from liquid to gas phase Unidirectional diffusion from gas to liquid phase Either A or B A counter diffusion at an almost equal molar rate Unidirectional diffusion from liquid to gas phase Unidirectional diffusion from gas to liquid phase Either A or B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) √P P 1/√P 1/P √P P 1/√P 1/P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Priming in a distillation column Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration Reduces the overall pressure drop Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration Reduces the overall pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flooding in a column results due to Low pressure drop High pressure drop High temperature Low velocity of the liquid Low pressure drop High pressure drop High temperature Low velocity of the liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If a₁ and a₂ are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement. a₁ = 2a₂ a₁ = 0.5 a₂ None of these a₁ = a₂ a₁ = 2a₂ a₁ = 0.5 a₂ None of these a₁ = a₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetic acid will be most economically separated from a dilute solution of acetic acid in water by Solvent extraction Continuous distillation Absorption Evaporation Solvent extraction Continuous distillation Absorption Evaporation ANSWER DOWNLOAD EXAMIANS APP
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