Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D2 K ∝ D K ∝ D1.5 K ∝ √D K ∝ D2 K ∝ D K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Remains same Increase Decrease Depend on saturated boiling point; may increase or decrease Remains same Increase Decrease Depend on saturated boiling point; may increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to that of component B Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to that of component B Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent. Between 0 and 100 50 100 Between 0 and 100 50 100 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero. Gas phase Liquid phase All of these Interface Gas phase Liquid phase All of these Interface ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In steam distillation, the Product must be immiscible with water Temperature is higher than the boiling point of either component Temperature is more than 100° C Temperature is 100°C Product must be immiscible with water Temperature is higher than the boiling point of either component Temperature is more than 100° C Temperature is 100°C ANSWER DOWNLOAD EXAMIANS APP
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