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 Dependent on the Reynolds number D/2a D/a Proportional to √D Dependent on the Reynolds number D/2a D/a ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases does not depend upon the Temperature Nature of the components Pressure None of the listed here Temperature Nature of the components Pressure None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In which of the following unit operations, the selectivity is an important parameter? Solvent extraction Absorption None of these Distillation Solvent extraction Absorption None of these Distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Perforated tray tower Grid tray tower Bubble cap tower Wetted wall tower Perforated tray tower Grid tray tower Bubble cap tower Wetted wall tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases at atmospheric conditions is about 10-3 sec/cm 10-1 cm²/sec 10-9 cm/sec 10-4 cm²/seC₂ 10-3 sec/cm 10-1 cm²/sec 10-9 cm/sec 10-4 cm²/seC₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) P 1/√P √P 1/P P 1/√P √P 1/P ANSWER DOWNLOAD EXAMIANS APP
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