Mass Transfer What is the reflux ratio at total reflux? Infinity Unity Data insufficient Zero Infinity Unity Data insufficient Zero ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient is directly proportional to DAB according to the __________ theory. Film Surface-renewal None of these Penetration Film Surface-renewal None of these Penetration 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 a₁ = 2a₂ a₁ = 0.5 a₂ None of these a₁ = a₂ a₁ = 2a₂ a₁ = 0.5 a₂ None of these 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 In triangular co-ordinates, the ternery composition point falls __________ of the triangle. In the corners On the sides Inside None of these In the corners On the sides Inside None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second. 1 to 5 > 10 5 to 10 1 1 to 5 > 10 5 to 10 1 ANSWER DOWNLOAD EXAMIANS APP
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