Mass Transfer In a counter-current liquid extractor Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Liquid's flow rate depends upon the temperature and pressure Both liquids flow at fixed rate Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Liquid's flow rate depends upon the temperature and pressure Both liquids flow at fixed rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is Directly proportional to 'T1.5' All of these Inversely proportional to 'P' Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' All of these Inversely proportional to 'P' Dependent on the molecular volume & molecular weight of components ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the mutual solubility of two liquids Decreases Remains unchanged Increases Decreases exponentially Decreases Remains unchanged Increases Decreases exponentially ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the solvent dissolves very little of solute, then Solvent of low freezing point should be used Very small quantity of solvent is required Large quantity of solvent is required to extract the solute Solvent of low latent heat of vaporisation should be used Solvent of low freezing point should be used Very small quantity of solvent is required Large quantity of solvent is required to extract the solute Solvent of low latent heat of vaporisation should be used ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of L/mG ratio for economical absorption operation ranges from 0.8 to 1.2 0.5 to 0.8 1.25 to 2.0 2.5 to 3.5 0.8 to 1.2 0.5 to 0.8 1.25 to 2.0 2.5 to 3.5 ANSWER DOWNLOAD EXAMIANS APP
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