A system comprised of chloroform, 1,4-dioxane, and ethanol exists as a two-phase Vapor liquid system at 323.15 K (50C) and 55 kPa.

A system comprised of chloroform, 1,4-dioxane, and ethanol exists as a two-phaseVapor liquid system at 323.15 K (50°C) and 55 kPa. It is found, after the addition ofsome pure ethanol, that the system can be returned to two-phase equilibrium at the initialT and P. In what respect has the system changed, and in what respect has it not changed