Abstract
The Soret coefficient of aqueous sulfuric acid has been determined conductimetrically from 0.0005 to 0.2m at 25°C. The derived enthalpies of transport increase sharply as the concentration drops, approaching a limiting value near 35 kJ-mol−1. The increase, in the enthalpy of transport at low concentrations is due to the large intrinsic enthalpies of transport of the hydrogen and sulfate ions that are produced by the dissociation of bisulfate ions. The enthalpy of dissociation of the bisulfate ions reduces the acid's enthalpy of transport by up to 1.8 kJ-mol−1.
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References
J. N. Agar and J. C. R. Turner,J. Phys. Chem. 64, 1000, (1960).
J. N. Agar and J. C. R. TurnerProc. Roy. Soc. (London) A255, 307 (1960).
P. N. Snowdon and J. C. R. Turner,Trans. Faraday Soc. 56, 1409 (1960).
P. N. Snowdon and J. C. R. Turner,Trans. Faraday Soc. 56, 1812 (1960).
N. H. Sagert and W. G. Breck,Trans. Faraday Soc. 57, 436 (1961).
A. D. Payton and J. C. R. Turner,Trans. Faraday Soc. 58, 55 (1962).
K. S. Pitzer, R. N. Roy and L. F. Silvester,J. Am. Chem. Soc. 99, 4930 (1977), and references cited therein.
C. Wagner,Ann. Physik 3, 629 (1929)
R. S. Brokaw,J. Chem. Phys. 47, 3263 (1967).
B. Baranowski, A. E. de Vries, A. Haring and R. Paul,Advances in Chemical Physics 16, 101 (1969).
P. S. Belton and H. J. V. Tyrrell,Z. Naturforsch. A 26, 48 (1971).
J. C. Johnson and A. L. Beyerlein,J. Phys. Chem. 82, 1430 (1978).
J. N. Agar and J. Lin,J. Solution Chem. 16, 973 (1987).
I. M. Klotz and C. F. Eckert,J. Am. Chem. Soc. 64, 1878 (1942).
Z. Yogi, H. Kitano, I. Toma, K. Kijima, and T. Ikeda,Bull. Chem. Soc. Jpn. 53, 885 (1980).
H. S. Harned and D. M. French,Proc. N. Y. Acad. Sci. 46, 267 (1945).
A. A. Noyes and M. A. Stewart,J. Am. Chem. Soc. 32, 1133 (1910).
J. E. Roughton,J. Appl. Chem. 1,Suppl. Issue 2, 5141 (1951).
J. A. Bierlein,J. Chem. Phys. 23, 10 (1955).
J. N. Agar,Trans. Faraday. Soc. 56, 776 (1960).
D. G. Leaist,Can. J. Chem. 62, 1692 (1984).
B. D. Butler and J. C. R. Turner,J. Phys. Chem. 69, 3598 (1965).
T. Shedlovsky,J. Am. Chem. Soc. 54, 1411 (1932).
W. J. Hamer and Y. C. Wu,J. Phys. Chem. Ref. Data 1, 1047 (1972).
J. Lin, J. A. Bierlein, and J. G. Becsey.,J. Solution Chem 3, 827 (1974).
N. Takeyama and K. Nakashima,J. Solution Chem. 17, 305 (1988).
B. Wiens and D. G. Leaist,J. Chem. Soc. Faraday Trans. I 82, 247 (1986).
L. S. Darken and H. F. Meier,J. Am. Chem. Soc. 64, 621 (1942).
V. Sivertz, R. E. Reitmeier, and H. V. Tartar,J. Am. Chem. Soc. 62, 1379 (1940).
I. L. Jenkins and C. B. Monk,J. Am. Chem. Soc. 72, 2695 (1950).
M. Kerker,J. Am. Chem. Soc. 79, 3664 (1957).
D. G. Leaist,J. Chem. Soc. Faraday Trans. I 78, 3069 (1982).
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Leaist, D.G. The Soret effect with chemical reaction in aqueous sulfuric acid solutions. J Solution Chem 18, 651–661 (1989). https://doi.org/10.1007/BF00651001
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DOI: https://doi.org/10.1007/BF00651001