Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases Slope of the operating line in stripping section decreases Number of plates decreases very slowly first and then more and more rapidly Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases Slope of the operating line in stripping section decreases Number of plates decreases very slowly first and then more and more rapidly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Dependent on the system; can be either lower or higher than Always lower than Always higher than Same as Dependent on the system; can be either lower or higher than Always lower than Always higher than Same as ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the solvent dissolves very little of solute, then Large quantity of solvent is required to extract the solute Solvent of low freezing point should be used Solvent of low latent heat of vaporisation should be used Very small quantity of solvent is required Large quantity of solvent is required to extract the solute Solvent of low freezing point should be used Solvent of low latent heat of vaporisation should be used Very small quantity of solvent is required ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Packed towers Wetted wall columns Spray towers Plate towers Packed towers Wetted wall columns Spray towers Plate towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For absorbing a sparingly soluble gas in a liquid Liquid side mass transfer co-efficient should be increased Gas side mass transfer co-efficient should be increased Mass transfer co-efficient must be kept constant Liquid side mass transfer co-efficient should be decreased Liquid side mass transfer co-efficient should be increased Gas side mass transfer co-efficient should be increased Mass transfer co-efficient must be kept constant Liquid side mass transfer co-efficient should be decreased ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases because of the Both Decreased viscosity of liquid & Increased diffusivity Increased diffusivity Decreased viscosity of liquid None of the listed here Both Decreased viscosity of liquid & Increased diffusivity Increased diffusivity Decreased viscosity of liquid None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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