At temperatures above 900°C, is water still in a molecular state?
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At temperatures above 900°C, is water still in a molecular state?
This post was last edited by h20090630 on 2020-5-25 at 11:50. It’s still the same water; only its form has changed. 1 Water turns into a supercritical fluid when both the critical pressure and critical temperature are exceeded; these values are 374°C at 218 atmospheres, at which point water remains in liquid form. 2. In current supercritical power generation units, the steam temperature is around 800 degrees; in ultra-supercritical units, both temperature and pressure are even higher. Water molecules remain water molecules, but they carry more energy. The million-kilowatt power plants as well as nuclear power plants that are being built these days are all of the ultra-supercritical type.