Extension of the Saturation curve in the H2O Supercritical region: (a) by different methods—narrow line: by peaks of the ; dashed line—by peaks of the compressibility coefficient; wide line—Saturation curve. (b) two ways of coming from the gas phase to the liquid phase—wide red line—the Saturation curve; wide blue line—the extension of the Saturation curve in the Supercritical zone; wide green lines—the nominal boundaries of the Supercritical zone; thin red line—the path crossing the Saturation curve; thin green line—the path crossing the extension zone.
