Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D2 D0.5 D 1/D D2 D0.5 D 1/D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can not be increased by Increasing the air velocity over the wet surfaces Reducing the humidity of entering air None of these Lowering the barometric pressure Increasing the air velocity over the wet surfaces Reducing the humidity of entering air None of these Lowering the barometric pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following same diameter columns gives lowest pressure drop per unit height? Sieve-plate column Bubble-cap column Randomly packed column Packed column (stacked) Sieve-plate column Bubble-cap column Randomly packed column Packed column (stacked) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as Ri = (1 - Re)/Re Ri = Re/(1 - Re) Ri = Re Ri = Re/(1 + Re) Ri = (1 - Re)/Re Ri = Re/(1 - Re) Ri = Re Ri = Re/(1 + Re) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In stripping section of continuous distillation column, the None of these Vapour is stripped of low boiler Liquid is enriched with high boiler Liquid is stripped of high boiler None of these Vapour is stripped of low boiler Liquid is enriched with high boiler Liquid is stripped of high boiler ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. Is lower than Cannot be predicted as data are insufficient Is same as Is greater than Is lower than Cannot be predicted as data are insufficient Is same as Is greater than ANSWER DOWNLOAD EXAMIANS APP
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