Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Wetted wall columns Plate towers Packed towers Spray towers Wetted wall columns Plate towers Packed towers Spray towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steam distillation is used to separate Azeotropes Heat sensitive materials Mixtures of low relative volatility High boiling substances from nonvolatile impurities Azeotropes Heat sensitive materials Mixtures of low relative volatility High boiling substances from nonvolatile impurities ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dew point of an air-water vapor mixture At constant humidity & total pressure is fixed Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve Decreases with decrease in pressure All of the listed here At constant humidity & total pressure is fixed Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve Decreases with decrease in pressure All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relative volatility of a binary mixture at constant temperature __________ the total pressure. Is independent of Increases with increase in None of these Decreases with increase in Is independent of Increases with increase in None of these Decreases with increase in 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 Increases with increase in Neither A nor B Is one at unity value of Both A and B Increases with increase in Neither A nor B Is one at unity value of ANSWER DOWNLOAD EXAMIANS APP
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