Mass Transfer Stefan's law describes the mass transfer by Diffusion Both A & B Neither A nor B Bulk flow Diffusion Both A & B Neither A nor B Bulk flow ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate period, the rate of drying decreases with the Decrease in air temperature Increase in air humidity Both A & B Neither A nor B Decrease in air temperature Increase in air humidity Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that The system comprises of an azeotrope The system comprises of partially mis-cible liquids On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of miscible liquids The system comprises of an azeotrope The system comprises of partially mis-cible liquids On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of miscible liquids ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Gives higher pressure drop Provides poorer contact between the fluids Both A & B Gives lower pressure drop Gives higher pressure drop Provides poorer contact between the fluids Both A & B Gives lower pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unit of molal diffusivity is Gm moles/cm. sec Cm²/sec gm . mole Gm moles/cm² . sec Gm moles/cm². sec Gm moles/cm. sec Cm²/sec gm . mole Gm moles/cm² . sec Gm moles/cm². sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Rotating disc contactor Mechanical draft cooling tower Rotary dryer Multiple effect evaporator Rotating disc contactor Mechanical draft cooling tower Rotary dryer Multiple effect evaporator ANSWER DOWNLOAD EXAMIANS APP
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