Mass Transfer If the amount of the steam used in steam distillation is increased, the temperature of distillation Increases Depends on relative volatility Remains unchanged Decreases Increases Depends on relative volatility Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If a₁ and a₂ are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement. None of these a₁ = 2a₂ a₁ = 0.5 a₂ a₁ = a₂ None of these a₁ = 2a₂ a₁ = 0.5 a₂ a₁ = a₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For water-ethanol system, the minimum reflux ratio Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is computed from the intercept of the operating line Is the optimum reflux ratio Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is computed from the intercept of the operating line Is the optimum reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using Liquid extraction Distillation Absorption Evaporation Liquid extraction Distillation Absorption Evaporation 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, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a distillation column operating at minimum reflux, the Reflux ratio will be maximum None of these Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum Reflux ratio will be maximum None of these Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum ANSWER DOWNLOAD EXAMIANS APP
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