Sulphur isotope exchange between sulphur dioxide and hydrogen sulphide
1971; Elsevier BV; Volume: 35; Issue: 1 Linguagem: Inglês
10.1016/0016-7037(71)90102-5
ISSN1872-9533
AutoresH. G. Thode, C.B. Cragg, J.R. Hulston, C. E. Rees,
Tópico(s)Methane Hydrates and Related Phenomena
ResumoThe variation with absolute temperature, T, of the sulphur isotope equilibrium constant, K, between sulphur dioxide and hydrogen sulphide has been measured and the results compared with theoretical calculations. In the temperature range 800°K to 1300°K the experimentally measured variation is (K − 1) = (4540T2) − 0.0003, while the theoretically calculated variation is (K − 1) = (3650T2). These two estimates do not quite overlap within the assigned limits of error but theory and experiment agree to within $̌1%. in the temperature range studied. Thus geochemical calculations involving this exchange reaction may be performed with confidence using either estimate for the isotope equilibrium constant.
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