Mass Transfer Back-trapping in a distillation column Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Decreases tray efficiency Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Decreases tray efficiency Reduces pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dew point of an air-water vapor mixture All of the listed here Decreases with decrease in pressure Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve At constant humidity & total pressure is fixed All of the listed here Decreases with decrease in pressure Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve At constant humidity & total pressure is fixed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture. Dry bulb Dew point Wet bulb None of these Dry bulb Dew point Wet bulb None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Increases with time Decreases with time Does not change with time Does not affect the moisture content of the wet solid Increases with time Decreases with time Does not change with time Does not affect the moisture content of the wet solid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The fixed cost of a distillation column at minimum reflux ratio is None of these Minimum Infinite Optimum None of these Minimum Infinite Optimum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Entrainer used in azeotropic distillation should Have high latent heat of vaporisation Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency Form a new azeotrope of low relative volatility with one of the constituents of the mixture Have high latent heat of vaporisation Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency Form a new azeotrope of low relative volatility with one of the constituents of the mixture ANSWER DOWNLOAD EXAMIANS APP
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