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Triple point - Wikipedia, the free encyclopedia
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In thermodynamics, the triple point of a substance is the temperature and pressure at which three phases (for example, gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium....
en.wikipedia.org/wiki/Triple_point
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The level where vapor and liquid are indistinguishable ... At the critical point there is no change of state when pressure is increased or if heat is added. At the critical point the water and steam can't be distinguished, and there is no point referring to water or steam.
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www.engineeringtoolbox.com/critical-point-water-steam-d...
www.engineeringtoolbox.com/critical-point-water-steam-d_834.html
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Although this second critical point of water is not accessible experimentally, the pre-critical anomalies affect thermodynamic and transport properties of water in the metastable and even in stable regions and can be observed experimentally.
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aiche.confex.com/aiche/2006/techprogram/P52602.HTM
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A new model is reported that combines a Helmholtz energy expression developed by Anderko and Pitzer and is valid in the critical region of water with a mathematical equation developed by Wood and co-workers describing the dissociation of aqueous sodium chloride.
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pubs.acs.org/cgi-bin/jtext?iecred/40/i09/abs/ie000930r
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The mean ionic activity coefficients of dilute electrolyte solutions show large anomalies near the critical point of water. Activity coefficients of aqueous NaCl solutions were calculated with an electrolyte equation of state at several different near-critical temperatures and densities. ... At the critical point,
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pubs.acs.org/cgi-bin/abstract.cgi/jpcbfk/2003/107/i39/a...
pubs.acs.org/cgi-bin/abstract.cgi/jpcbfk/2003/107/i39/abs/jp035054k.html
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Critical point of water with the Declic High Temperature Insert ... video presentations march 16 2007; Image of H2O through HTI at 374.2ºC; Temperature step from 374.1ºC to 373.8ºC cooling down; quench down (15 MB); Temperature step from 373.8ºC to 374.1ºC heating up; quench up (24 MB);
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www.science.uva.nl/research/mgrd/video-cp.html
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Flewelling, A.C., DeFonseka, R.J., Khaleeli, N., Partee, J., Jacobs, D.T., Heat Capacity Anomaly Near the Lower Critical Consolute Point of Triethylamine-Water, J. Chem. Phys., American Institute of Physics, College Park, MD, Vol.
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microgravity.grc.nasa.gov/fcarchive/fluids/papers/Flewe...
microgravity.grc.nasa.gov/fcarchive/fluids/papers/Flewelling/Heat_Capacity.htm
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BioInfoBank Library :: Comment on Pressure Dependence of Fragile-to-Strong Transition and a Possible Second Critical Point in Supercooled Confined Water. Dielectric and calorimetric studies of hydrated purple membrane. ... Keywords: supercool; confin water; second critical; pressure dependence; possible second; critical point;
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lib.bioinfo.pl/pmid:17155592
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