Mass Transfer For water-ethanol system, the minimum reflux ratio Is the optimum reflux ratio Is computed from the intercept of the operating line Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is the optimum reflux ratio Is computed from the intercept of the operating line Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fractional solvent extraction Results in low interfacial tension None of the listed here Employs two solvents Employs only one solvent Results in low interfacial tension None of the listed here Employs two solvents Employs only one solvent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same system, if the same liquid used in an absorber is decreased, the tower height will Remain unaffected Decrease Increase Decrease or increase ; depends on the type of liquid Remain unaffected Decrease Increase Decrease or increase ; depends on the type of liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Solvent used in extractive distillation Forms a low boiling azeotrope Is of low volatility Does not alter the relative volatility of the original components Forms a high boiling azeotrope Forms a low boiling azeotrope Is of low volatility Does not alter the relative volatility of the original components Forms a high boiling azeotrope ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ is concerned with the adsorption equilibria. Gibb's equation Freundlich equation Fick's law None of these Gibb's equation Freundlich equation Fick's law None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 1 0.4 0.2 1 0.4 0.2 ANSWER DOWNLOAD EXAMIANS APP
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