Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Increases Decreases Remains unaffected Passes through a maximum Increases Decreases Remains unaffected Passes through a maximum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law. Parabolic Cubic Linear Exponential Parabolic Cubic Linear Exponential ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing. Either A, or B ; depends on the type of packing Equal to Smaller than Greater than Either A, or B ; depends on the type of packing Equal to Smaller than Greater than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption with exothermic reaction, for fluids having Both A & B Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same Pr = Sc ; there won Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence Both A & B Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same Pr = Sc ; there won Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor method is used to calculate the number of ideal stages, when Pressure drop in the column is very high Both operating and equilibrium lines are parallel Operating line lies below the equilibrium line Operating line lies above the equilibrium line Pressure drop in the column is very high Both operating and equilibrium lines are parallel Operating line lies below the equilibrium line Operating line lies above the equilibrium line ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) 1/D D D2 D0.5 1/D D D2 D0.5 ANSWER DOWNLOAD EXAMIANS APP
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