Mass Transfer In case of an absorber, the operating Line always lies below the equilibrium curve Line always lies above the equilibrium curve Line can be either above or below the equilibrium curve Velocity is more than the loading velocity Line always lies below the equilibrium curve Line always lies above the equilibrium curve Line can be either above or below the equilibrium curve Velocity is more than the loading velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible. Remains same Increases linearly Increases Decreases Remains same Increases linearly Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ columns are used for liquid dispersion in a continuous gas phase. Packed Bubble cap Sieve plate Pulse Packed Bubble cap Sieve plate Pulse 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 0.2 0.4 1 0.2 0.4 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Hatta number is important in Binary distillation Gas absorption with chemical reaction Gas absorption without chemical reaction Multicomponent distillation Binary distillation Gas absorption with chemical reaction Gas absorption without chemical reaction Multicomponent distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is 2500 1000 1500 2000 2500 1000 1500 2000 ANSWER DOWNLOAD EXAMIANS APP