Thermodynamic investigation of the state of water adsorbed by carbonaceous adsorbents |
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Authors: | G I Berezin G A Petukhova N S Polyakov M L Gubkina |
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Institution: | (1) Institute of Physical Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 117915 Moscow, Russian Federation |
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Abstract: | The state of water adsorbed on active carbons and canal soot was studied using the “chemical potential—entropy—temperature”
diagram. In the range of the relative pressures from 0.174 to 1, the state of adsorbed water is similar to the state of a
stretched liquid. The molar volume, heat of evaporation, and surface tension of stretched water were calculated at different
relative pressures. Near the spinodal, the molar volume of stretched water is 25% higher, and the surface tension is considerably
lower compared to water.
Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 3, pp. 464–468, March, 1997. |
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Keywords: | adsorption carbonaceous adsorbents chemical potential entropy temperature aggregate state of water |
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