How does the strength of strong liquor in an absorption system change as the condenser pressure decreases?

In an absorption system, as the condenser pressure decreases, the strength of strong liquor decreases. This occurs because a reduction in condenser pressure lowers the boiling point of the liquor, allowing more volatile compounds to escape during the distillation process. Consequently, the concentration of alcohol and other substances in the liquor is diminished as lighter components are vaporized more readily.

Lower condenser pressure promotes a greater vaporization of substances. As a result, the composition of the remaining liquid (strong liquor) becomes less concentrated, leading to a decrease in its overall strength. Thus, the relationship between condenser pressure and the strength of strong liquor is inversely proportional, where decreasing pressure results in decreased strength.