A comparison of theoretical and experimental limiting slopes for the concentration dependence of thermoelectric powers in dilute aqueous hydrochloric acid and hydrobromic acid

Phillip Wilmarth, Arthur D. Payton

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

For hydrogen-electrode thermocells with a 10°C temperature difference, initial thermoelectric powers (tep) in dilute (-1) aqueous solutions of HCl (at mean temperatures of 20, 25, and 30°C) and of HBr (at 15, 25, and 35°C) have been used to determine infinite-dilution limiting slopes of plots of the tep vs. the square root of hydrogen-ion molality. These slopes have been compared with values calculated from a modified heat-of-transport theory and agreement was found to be good.

Original languageEnglish (US)
Pages (from-to)3950-3952
Number of pages3
JournalJournal of Physical Chemistry
Volume85
Issue number25
StatePublished - 1981
Externally publishedYes

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Hydrobromic Acid
hydrobromic acid
Hydrochloric Acid
Thermoelectric power
hydrochloric acid
Hydrochloric acid
slopes
Hydrogen
acids
Acids
transport theory
hydrogen ions
Dilution
dilution
Protons
temperature gradients
plots
aqueous solutions
heat
Temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "For hydrogen-electrode thermocells with a 10°C temperature difference, initial thermoelectric powers (tep) in dilute (-1) aqueous solutions of HCl (at mean temperatures of 20, 25, and 30°C) and of HBr (at 15, 25, and 35°C) have been used to determine infinite-dilution limiting slopes of plots of the tep vs. the square root of hydrogen-ion molality. These slopes have been compared with values calculated from a modified heat-of-transport theory and agreement was found to be good.",
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AU - Payton, Arthur D.

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N2 - For hydrogen-electrode thermocells with a 10°C temperature difference, initial thermoelectric powers (tep) in dilute (-1) aqueous solutions of HCl (at mean temperatures of 20, 25, and 30°C) and of HBr (at 15, 25, and 35°C) have been used to determine infinite-dilution limiting slopes of plots of the tep vs. the square root of hydrogen-ion molality. These slopes have been compared with values calculated from a modified heat-of-transport theory and agreement was found to be good.

AB - For hydrogen-electrode thermocells with a 10°C temperature difference, initial thermoelectric powers (tep) in dilute (-1) aqueous solutions of HCl (at mean temperatures of 20, 25, and 30°C) and of HBr (at 15, 25, and 35°C) have been used to determine infinite-dilution limiting slopes of plots of the tep vs. the square root of hydrogen-ion molality. These slopes have been compared with values calculated from a modified heat-of-transport theory and agreement was found to be good.

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