Mass Transfer In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero. Interface Gas phase Liquid phase All of these Interface Gas phase Liquid phase All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At what percentage (by volume) of alcohol composition, it forms an azeotrope with water? 90 95 99 91.5 90 95 99 91.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? Bamboo Rag paper Inorganic solids Anthracite coal Bamboo Rag paper Inorganic solids Anthracite coal 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 A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture? The mixture exhibits an azeotrope at 101.3 kPa The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 The mixture contain optical isomers The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 The mixture exhibits an azeotrope at 101.3 kPa The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 The mixture contain optical isomers The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 ANSWER DOWNLOAD EXAMIANS APP
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