Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Large minimum liquid to gas (L/G) ratio
Decreased solute solubility
Large number of trays
All of these

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Mass Transfer
For water-ethanol system, the minimum reflux ratio

Is the optimum reflux ratio
Cannot be computed
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

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