Mass Transfer For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. Increases Remains same Decreases Either A or B; depends on the gas Increases Remains same Decreases Either A or B; depends on the gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusion co-efficient increases with increase in the Pressure Temperature Both Pressure & Temperature None of the listed here Pressure Temperature Both Pressure & Temperature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In which of the following unit operations, the selectivity is an important parameter? Absorption Solvent extraction None of these Distillation Absorption Solvent extraction None of these Distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer. Tray Rotary Tunnel None of these Tray Rotary Tunnel None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S present in naphtha reformed gas is removed by absorbing with Vacuum gas oil Ethanolamine HCl K₂CO₃ Vacuum gas oil Ethanolamine HCl K₂CO₃ 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) More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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