Mass Transfer Which of the following remains constant during evaporative cooling process with recirculated water supply? Partial pressure of vapour None of these Wet bulb temperature Relative humidity Partial pressure of vapour None of these Wet bulb temperature Relative humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate None of these Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory 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 As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages Decrease Can either increase or decrease, depends on the system Increase Remain unchanged Decrease Can either increase or decrease, depends on the system Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of mass transfer is not dependent upon the Interfacial surface exposed between the phases Degree of dispersion of one fluid in the other None of these Both A & B Interfacial surface exposed between the phases Degree of dispersion of one fluid in the other None of these Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm. None of these Benzene-ethyl alcohol Ethyl alcohol-water Acetone chloroform None of these Benzene-ethyl alcohol Ethyl alcohol-water Acetone chloroform ANSWER DOWNLOAD EXAMIANS APP
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