Mass Transfer Entrainer used in azeotropic distillation should Have high latent heat of vaporisation Form a new azeotrope of low relative volatility with one of the constituents of the mixture Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency Have high latent heat of vaporisation Form a new azeotrope of low relative volatility with one of the constituents of the mixture Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The minimum number of theoretical plates is required for achieving a given separation in distillation column with No reflux Zero reflux ratio Total reflux Minimum reflux ratio No reflux Zero reflux ratio Total reflux Minimum reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske equation determines the Optimum reflux ratio Maximum number of ideal plates Minimum number of theoretical plates Height of the distillation column Optimum reflux ratio Maximum number of ideal plates Minimum number of theoretical plates Height of the distillation column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of mass transfer is not dependent upon the None of these Interfacial surface exposed between the phases Degree of dispersion of one fluid in the other Both A & B None of these Interfacial surface exposed between the phases Degree of dispersion of one fluid in the other Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Decreases tray efficiency Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Reduces pressure drop Decreases tray efficiency Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Reduces pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Increases with time Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time Does not change with time Decreases with time Does not affect the moisture content of the wet solid ANSWER DOWNLOAD EXAMIANS APP
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