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arXiv 1011.0930cond-mat.softphysics.chem-ph
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酸性溶液的表面张力和表面电位

Surface tensions and surface potentials of acid solutions

Alexandre P. dos Santos, Yan Levin

摘要:

本文提出了一个理论,它使我们能够定量地计算酸溶液的过量表面张力。H^+以水合氢离子的形式被强烈地吸附在溶液-空气界面上。为了解释实验测得的静电电势差,有必要假设水合氢离子的方向是氢原子指向本体水中。该理论是定量准确的表面张力和定性的静电电势差跨越空气-水界面。

英文摘要:

A theory is presented which allows us to quantitatively calculate the excess surface tension of acid solutions. The H^+, in the form of hydronium ion, is found to be strongly adsorbed to the solution-air interface. To account for the electrostatic potential difference measured experimentally, it is necessary to assume that the hydronium ion is oriented with its hydrogens pointing into the bulk water. The theory is quantitatively accurate for surface tensions and is qualitative for electrostatic potential difference across the air-water interface.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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