Mass Transfer Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the None of these Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments Viscosity variation of the fluids may cause channeling/flooding None of these Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments Viscosity variation of the fluids may cause channeling/flooding ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 8 6 10 12 8 6 10 12 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 The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used An azeotrope forms ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Make up water is required in a cooling tower to replace the water lost by Evaporation All of these Blowdown and leakage Drift Evaporation All of these Blowdown and leakage Drift ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of unsaturated air Wet bulb temperature < dry bulb temperature Dew point < wet bulb temperature Both of the options given here None of the listed here Wet bulb temperature < dry bulb temperature Dew point < wet bulb temperature Both of the options given here None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation. Hexane Furfural Benzol Butyl acetate Hexane Furfural Benzol Butyl acetate ANSWER DOWNLOAD EXAMIANS APP
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