Supercritical Fluid Gen­er­ates Ex­treme Quan­ti­ties of En­ergy

Science Illustrated - - TECHNOLOGY -

At tem­per­a­tures above 374 de­grees, when the pres­sure is more than 220 times that at Earth’s sur­face, wa­ter does not turn into vapour, but rather into supercritical fluid.

At this stage, the wa­ter is so high- en­ergy that the mol­e­cules can­not bind to any­thing, rather they speed about each other. But the high pres­sure com­presses the mol­e­cules, so they get a shape rem­i­nis­cent of liq­uid wa­ter – i.e. the wa­ter is a type of liq­uid gas. It can dis­solve other sub­stances, like liq­uid, but also pass through cer­tain sub­stances, like a gas. Con­cepts like "bi­ol­ing" and "con­dens­ing" don't re­ally ap­ply to supercritical fluid.

THE FOUR STATES OF WA­TER Liq­uid (wa­ter) Solid (ice) Gas (vapour) Supercritical fluid TEM­PER­A­TURE LOW HIGH

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