Mass Transfer The diffusivity (D) in a binary gas mixture is related to the temperature (T) as D ∝ T0.5 D ∝ T1.5 D ∝ T D ∝ T2 D ∝ T0.5 D ∝ T1.5 D ∝ T D ∝ T2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture. Equilibrium Free Unbound Bound Equilibrium Free Unbound Bound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is Same as the Murphree efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates Always more than the point efficiency Same as the Murphree efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates Always more than the point efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of a desorber (stripper), the Temperature always increases Operating line always lies above the equilibrium curve Operating line always lies below the equilibrium curve Temperature remains unaffected Temperature always increases Operating line always lies above the equilibrium curve Operating line always lies below the equilibrium curve Temperature remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Always higher than Same as Dependent on the system; can be either lower or higher than Always lower than Always higher than Same as Dependent on the system; can be either lower or higher than Always lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect The fraction vaporised but not the product composition The product composition as well as the fraction vaporised Neither the product composition nor the fraction vaporised The product composition but not the fraction vaporised The fraction vaporised but not the product composition The product composition as well as the fraction vaporised Neither the product composition nor the fraction vaporised The product composition but not the fraction vaporised ANSWER DOWNLOAD EXAMIANS APP
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