Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Dependent on the Reynolds number D/a Proportional to √D D/2a Dependent on the Reynolds number D/a Proportional to √D D/2a ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T T² √T T⁴ T T² √T T⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve) S₁ x S₂ S₁ - S₂ S₂/S₁ S₁/S₂ S₁ x S₂ S₁ - S₂ S₂/S₁ S₁/S₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When a multistage tray tower uses a minimum reflux ratio, it implies Infinite trays and minimum reboiler heat load Minimum trays and maximum reboiler heat load Minimum trays and minimum reboiler heat load Infinite trays and maximum reboiler heat load Infinite trays and minimum reboiler heat load Minimum trays and maximum reboiler heat load Minimum trays and minimum reboiler heat load Infinite trays and maximum reboiler heat load ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor. Both A and B Is one at unity value of Neither A nor B Increases with increase in Both A and B Is one at unity value of Neither A nor B Increases with increase in ANSWER DOWNLOAD EXAMIANS APP
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