Mass Transfer With increase in the concentration of the adsorbate, the integral heat of adsorption Remains unchanged Increases May increase or decrease ; depends on the type of adsorbate Decreases Remains unchanged Increases May increase or decrease ; depends on the type of adsorbate Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the Integral heat of adsorption None of these Differential heat of adsorption Heat of wetting Integral heat of adsorption None of these Differential heat of adsorption Heat of wetting ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Proportional to √D D/2a D/a Dependent on the Reynolds number Proportional to √D D/2a D/a Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Physical absorption is Both B & C Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon Both B & C Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For gas absorption, low viscosity solvents are preferred, because of their Low pumping pressure drop Rapid absorption rates All of these Better flow characteristics Low pumping pressure drop Rapid absorption rates All of these Better flow characteristics ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The caking of crystals can be prevented by Maintaining high critical humidity Coating the product with inert material Both A and C Maintaining low critical humidity Maintaining high critical humidity Coating the product with inert material Both A and C Maintaining low critical humidity ANSWER DOWNLOAD EXAMIANS APP
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