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Volumn 104, Issue 44, 2000, Pages 10352-10358

Association and dissociation of nonpolar solutes in super- and subcritical water

Author keywords

[No Author keywords available]

Indexed keywords

ASSOCIATION REACTIONS; CHEMICAL BONDS; COMPUTER SIMULATION; DISSOCIATION; HIGH TEMPERATURE EFFECTS; IONS; METHANE; MOLECULAR STRUCTURE; SOLVENTS; THERMODYNAMICS;

EID: 0034310553     PISSN: 10895647     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp002105u     Document Type: Article
Times cited : (20)

References (101)
  • 1
    • 0003227251 scopus 로고
    • Structure and reactivity in aqueous solution
    • American Chemical Society: Washington DC
    • Structure and Reactivity in Aqueous Solution; Cramer, C. J., Truhlar, D. G., Eds.; ACS Symposium Series 568; American Chemical Society: Washington DC, 1994.
    • (1994) ACS Symposium Series 568 , vol.568
    • Cramer, C.J.1    Truhlar, D.G.2
  • 11
    • 0343547014 scopus 로고    scopus 로고
    • note
    • In this paper, the term "supercritical water" refers to fluid water at a temperature above the critical. Note that the pressure (or density) is not specified.
  • 20
    • 0343111128 scopus 로고    scopus 로고
    • Fredericia, Denmark
    • The International Association for the Properties of Water and Steam, IAPWS Formulation 1995; Fredericia, Denmark, 1996.
    • (1996) IAPWS Formulation 1995
  • 75
    • 85029176736 scopus 로고    scopus 로고
    • Matubayasi, N.; Wakai, C.; Nakahara, M. Phys. Rev. Lett. 1997, 78, 2573; 1997, 78, 4309.
    • (1997) Phys. Rev. Lett. , vol.78 , pp. 4309
  • 95
    • 0343546979 scopus 로고    scopus 로고
    • note
    • 3, the magnitude of the T derivative of βΔw(r) above 100°C is less than ∼1/4 of that evaluated from the T variation from 25 to 100°C. From the thermodynamic point of view, however, it is legitimate to analyze the dependence of βΔw(r) on 1/T, rather than on T itself, and the 1/T derivative is less distinct below and above 100 °C than the T derivative. In the present paper, we compare βΔw(r) at a super-or subcritical temperature directly with that at a moderate temperature. Although this comparison is not thermodynamically systematic, it is helpful when a semiempirical model is to be developed for the aggregation of nonpolar solutes. The comparison is also useful from the operational point of view since the temperature elevation from 25 to 100°C is operationally much easier than the variation from 100°C to a supercritical temperature.
  • 96
    • 0342676801 scopus 로고    scopus 로고
    • note
    • 3 at a fixed temperature of 400°C.
  • 97
    • 0343983077 scopus 로고    scopus 로고
    • note
    • The linear dependence of βΔw(r) on the density ρ seen in Figure 3 is valid in the contact region expressed as 3.4 Å ≲ r ≲ 4.1 Å. The linearity is illustrated only at r = 3.7 Å for brevity.
  • 98
    • 0343983076 scopus 로고    scopus 로고
    • note
    • 3 is not large enough to cause a statistically significant change in βΔw(r).
  • 99
    • 0343983069 scopus 로고    scopus 로고
    • note
    • Our arguments are actually valid within the framework of the transition state theory.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.