Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) 1/D D2 D D0.5 1/D D2 D D0.5 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 product composition but not the fraction vaporised Neither the product composition nor the fraction vaporised The fraction vaporised but not the product composition The product composition as well as the fraction vaporised The product composition but not the fraction vaporised Neither the product composition nor the fraction vaporised The fraction vaporised but not the product composition The product composition as well as the fraction vaporised ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation, overhead product contains Any number of components Only saturated liquid Two components Only one component Any number of components Only saturated liquid Two components Only one component ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a Higher wet bulb temperature Higher absolute (specific) humidity Higher dew point Higher relative humidity Higher wet bulb temperature Higher absolute (specific) humidity Higher dew point Higher relative humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Dependent on the system; can be either lower or higher than Same as Always higher than Always lower than Dependent on the system; can be either lower or higher than Same as Always higher than Always lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Mass diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity None of these Mass diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity None of these ANSWER DOWNLOAD EXAMIANS APP
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