Mass Transfer Ammonia present in the coke oven gas is removed by washing with Dilute HCl Ethanolamine Dilute ammoniacal liquor Caustic solution Dilute HCl Ethanolamine Dilute ammoniacal liquor Caustic solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 0.2 1 0.4 0.2 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium-moisture curves of different solids Are same Depend on the humidity of the gas None of these Are different Are same Depend on the humidity of the gas None of these Are different ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Azeotropic distillation is employed to separate Mixture with very high relative volatility Constant boiling mixture High boiling mixture Heat sensitive materials Mixture with very high relative volatility Constant boiling mixture High boiling mixture Heat sensitive materials 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 Approach is 10°F Neither A nor B Both A & B Range is 15°F Approach is 10°F Neither A nor B Both A & B Range is 15°F ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS