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 D/2a Proportional to √D D/a Dependent on the Reynolds number D/2a Proportional to √D D/a Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is L/G Always < 1 G/L None of these L/G Always < 1 G/L None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? Yes ; but the air flow rate should be excessively high No Yes Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high No Yes Yes ; but height of cooling tower will be prohibitively high ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer What is the degree of freedom of an absorption process in which only one component is transferred between phases? 1 3 2 4 1 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S present in naphtha reformed gas is removed by absorbing with HCl Vacuum gas oil Ethanolamine K₂CO₃ HCl Vacuum gas oil Ethanolamine K₂CO₃ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Rate of leaching increases with increasing Size of the solid Temperature Pressure Viscosity of solvent Size of the solid Temperature Pressure Viscosity of solvent ANSWER DOWNLOAD EXAMIANS APP
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