Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the Thermal diffusivity to the mass diffusivity None of these Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity Thermal diffusivity to the mass diffusivity None of these Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Ammonia present in the coke oven gas is removed by washing with Dilute HCl Dilute ammoniacal liquor Ethanolamine Caustic solution Dilute HCl Dilute ammoniacal liquor Ethanolamine Caustic solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Radioactive nuclear waste is treated in Pulsed column extractor Rotating-disc contactor Mixer-settler extractor Bollman extractor Pulsed column extractor Rotating-disc contactor Mixer-settler extractor Bollman extractor 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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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, The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is the most commonly used leaching solvent in vegetable oil industry? Furfurol Liquid SO₂ Hexane Phenol Furfurol Liquid SO₂ Hexane Phenol ANSWER DOWNLOAD EXAMIANS APP
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