Mass Transfer Operating velocity in a packed tower is usually __________ the flooding velocity. More than Half Equal to Twice More than Half Equal to Twice ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the Both A & B Neither A nor B Range is 15°F Approach is 10°F Both A & B Neither A nor B Range is 15°F Approach is 10°F ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (De/t)1/2 (De.t)1/2 (4De/πt)1/2 (4De/t) (De/t)1/2 (De.t)1/2 (4De/πt)1/2 (4De/t) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Positive deviation from Raoult's law means a mixture whose total pressure is Less than the sum of the vapour pressure of the components None of these Less than that computed for ideality Greater than that computed for ideality Less than the sum of the vapour pressure of the components None of these Less than that computed for ideality Greater than that computed for ideality ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer CO₂ can be absorbed by Alumina Heated charcoal Hot cupric oxide Cold Ca(OH)₂ Alumina Heated charcoal Hot cupric oxide Cold Ca(OH)₂ 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 miscible liquids On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of an azeotrope The system comprises of partially mis-cible liquids The system comprises of miscible liquids On heating, a vapor phase will appear ; while on cooling, a solid phase will appear The system comprises of an azeotrope The system comprises of partially mis-cible liquids ANSWER DOWNLOAD EXAMIANS APP
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