Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D D0.5 D2 1/D D D0.5 D2 1/D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer McCabe-Thiele method Can use any type of units Uses molal units for material and energy balance Is more accurate than Ponchan-Savarit method Uses weight fractions to express liquid and vapour composition Can use any type of units Uses molal units for material and energy balance Is more accurate than Ponchan-Savarit method Uses weight fractions to express liquid and vapour composition ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer All moisture in a non-hygroscopic material is the __________ moisture. Unbound Equilibrium Bound Free Unbound Equilibrium Bound Free ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible. Increases linearly Decreases Increases Remains same Increases linearly Decreases Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption (chemical adsorption) is An irreversible phenomenon A reversible phenomenon Same as "Van der Waals" adsorption Characterised by adsorption of heat An irreversible phenomenon A reversible phenomenon Same as "Van der Waals" adsorption Characterised by adsorption of heat ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stage efficiency in a leaching process depends on the Vapour pressure of the solution Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B Vapour pressure of the solution Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B ANSWER DOWNLOAD EXAMIANS APP
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