Absorption factor is defined as

in counter-current liquid-liquid extraction, the maximum concentration of solute in extract layer

At plait point of a ternary system

In concurrent liquid-liquid extraction, the solvent B is used to separate solute C from a given solution A and C, The liquids A and B are insoluble. the slop of the operating line for each state will be

Relative humidity is the ratio of

In a distillation operation, the heat removed in condenser