Heat capacity changes for the lonization of aqueous phenols at 25°C

Harry P. Hopkins, Wayne C. Duer, Frank J Millero

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The apparent molal heat capacities {Mathematical expression} have been determined at 25°C for phenol, meta-nitrophenol, para-nitrophenol, meta-cyanophenol, and para-cyanophenol and the corresponding sodium salts in water at several concentrations. These values have been extrapolated to infinite dilution to provide the {Mathematical expression} values from which the heat capacity changes for the ionization of the aqueous phenols have been calculated. The observed {Mathematical expression} values are virtually identical within experimental error for the phenols studied. The volume data needed to calculate the {Mathematical expression} values from the experimental data are also reported.

Original languageEnglish (US)
Pages (from-to)263-268
Number of pages6
JournalJournal of Solution Chemistry
Volume5
Issue number4
DOIs
StatePublished - Apr 1976

Fingerprint

Nitrophenols
Phenols
phenols
Specific heat
Hot Temperature
specific heat
Phenol
Dilution
Ionization
Salts
Sodium
Water
dilution
sodium
salts
ionization
water

Keywords

  • cyanophenols
  • heat capacity
  • ionization
  • Molal volume
  • nitrophenols
  • phenol
  • sodium salts

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Heat capacity changes for the lonization of aqueous phenols at 25°C. / Hopkins, Harry P.; Duer, Wayne C.; Millero, Frank J.

In: Journal of Solution Chemistry, Vol. 5, No. 4, 04.1976, p. 263-268.

Research output: Contribution to journalArticle

Hopkins, Harry P. ; Duer, Wayne C. ; Millero, Frank J. / Heat capacity changes for the lonization of aqueous phenols at 25°C. In: Journal of Solution Chemistry. 1976 ; Vol. 5, No. 4. pp. 263-268.
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