Mass Transfer Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. Both A & B Degree of ideality Viscosity Neither A nor B Both A & B Degree of ideality Viscosity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing. Smaller than Equal to Either A, or B ; depends on the type of packing Greater than Smaller than Equal to Either A, or B ; depends on the type of packing Greater than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following has the same dimension as mass diffusivity? Momentum flux Thermal diffusivity Kinematic viscosity Both Momentum flux & Kinematic viscosity Momentum flux Thermal diffusivity Kinematic viscosity Both Momentum flux & Kinematic viscosity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. Dew point None of these Dry bulb Wet bulb Dew point None of these Dry bulb Wet bulb ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Humidification only Both heating and humidification Heating only Evaporative cooling Humidification only Both heating and humidification Heating only Evaporative cooling 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. 10 8 6 12 10 8 6 12 ANSWER DOWNLOAD EXAMIANS APP
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