Mass Transfer Molarity is defined as the number of gm moles of solute per __________ of solvent. Litre Kg Gm c Litre Kg Gm c ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency 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 2 1 1.56 0.56 2 1 1.56 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is Zero Called integral heat of adsorption Equal to the heat of formation of surface compound Equal to the heat of wetting Zero Called integral heat of adsorption Equal to the heat of formation of surface compound Equal to the heat of wetting ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Low reflux ratio Small cross-section column High reflux ratio Less number of trays Low reflux ratio Small cross-section column High reflux ratio Less number of trays 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 = a₂ None of these a₁ = 2a₂ a₁ = 0.5 a₂ a₁ = a₂ None of these a₁ = 2a₂ a₁ = 0.5 a₂ ANSWER DOWNLOAD EXAMIANS APP
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