Abstract
THE rate-determining step in the Grotthuss mechanism for protonic conduction in aqueous solution at ordinary pressures is the rotation of water molecules to assume the particular H-bonded mutual orientation necessary for the actual proton flip1. Our present work on the activation energy of protonic conduction in 0.10 M aqueous solution of hydrochloric acid in the 0°–10° C region has failed to disclose a maximum in this parameter at the temperature of maximum density in contrast to sea water2 and 0.10 M potassium chloride solutions3.
References
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Horne, R. A., J. Inorg. and Nucl. Chem., 25, 1139 (1963).
Horne, R. A., and Axelrod, E. H., J. Chem. Phys., 40, 1518 (1964).
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HORNE, R. Role of the Grotthuss Mechanism for Protonic and Electronic Transport in the Transmission of Impulses along Muscle Fibres. Nature 202, 1221 (1964). https://doi.org/10.1038/2021221a0
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DOI: https://doi.org/10.1038/2021221a0
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