Mass Transfer In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation. Higher than Either A or B, depends on the mixture composition Lower than Equal to Higher than Either A or B, depends on the mixture composition Lower than Equal to ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption compared to physical absorption has None of these Lower capacity of the solvent for the solute gas Increased utilisation of stagnant zones of the liquid phase Lower adsorption rate None of these Lower capacity of the solvent for the solute gas Increased utilisation of stagnant zones of the liquid phase Lower adsorption rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the concentration of the adsorbate, the integral heat of adsorption Decreases May increase or decrease ; depends on the type of adsorbate Increases Remains unchanged Decreases May increase or decrease ; depends on the type of adsorbate Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stage efficiency in a leaching process depends on the Both A & B Vapour pressure of the solution Time of contact between the solid and the solution Rate of diffusion of the solute through the solid and into the liquid Both A & B Vapour pressure of the solution Time of contact between the solid and the solution Rate of diffusion of the solute through the solid and into the liquid 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 1 0.4 0.2 1 0.4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same. Constant rate Unsaturated surface Neither A nor B Both A & B Constant rate Unsaturated surface Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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