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  2. Supercritical fluid - Wikipedia

    en.wikipedia.org/wiki/Supercritical_fluid

    In the pressure-temperature phase diagram (Fig. 1) the boiling curve separates the gas and liquid region and ends in the critical point, where the liquid and gas phases disappear to become a single supercritical phase. The appearance of a single phase can also be observed in the density-pressure phase diagram for carbon dioxide (Fig. 2).

  3. Critical point (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Critical_point...

    A plot of typical polymer solution phase behavior including two critical points: a LCST and an UCST. The liquid–liquid critical point of a solution, which occurs at the critical solution temperature, occurs at the limit of the two-phase region of the phase diagram. In other words, it is the point at which an infinitesimal change in some ...

  4. Phase diagram - Wikipedia

    en.wikipedia.org/wiki/Phase_diagram

    The pressure on a pressure-temperature diagram (such as the water phase diagram shown above) is the partial pressure of the substance in question. A phase diagram in physical chemistry , engineering , mineralogy , and materials science is a type of chart used to show conditions (pressure, temperature, etc.) at which thermodynamically distinct ...

  5. Widom line - Wikipedia

    en.wikipedia.org/wiki/Widom_line

    Pressure–temperature phase diagram. The supercritical state is at pressures and temperatures above those of the critical point, but below the pressures required for transformation into a solid. The dashed green line shows the anomalous slope of the solid-liquid phase boundary exhibited by some substances, including water.

  6. File:Comparison carbon dioxide water phase diagrams.svg

    en.wikipedia.org/wiki/File:Comparison_carbon...

    Extend axis to add supercritical water and use proper negative signs. 05:49, 2 March 2016: ... Comparison of phase diagrams of carbon dioxide and water: Image title:

  7. Triple point of water - Wikipedia

    en.wikipedia.org/wiki/Triple_point

    A typical phase diagram.The solid green line applies to most substances; the dashed green line gives the anomalous behavior of water. In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. [1]

  8. Supercritical liquid–gas boundaries - Wikipedia

    en.wikipedia.org/wiki/Supercritical_liquid–gas...

    supercritical gas-liquid boundaries in pT diagram. According to textbook knowledge, it is possible to transform a liquid continuously into a gas, without undergoing a phase transition, by heating and compressing strongly enough to go around the critical point.

  9. Supercritical steam generator - Wikipedia

    en.wikipedia.org/wiki/Supercritical_steam_generator

    Supercritical water exists at temperatures above 374 °C and pressures above 220 atmospheres. Diagram of a supercritical water-cooled nuclear reactor. A supercritical steam generator is a type of boiler that operates at supercritical pressure and temperature, frequently used in the production of electric power.