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Wei-Hua Yang1, Fang-Qi Yu1, Rao Huang1

  • 1Department of Physics, Xiamen University, Xiamen 361005, China. yhwen@xmu.edu.cn.

Nanoscale
|June 25, 2024
PubMed
概括

这项研究表明,金铜 (AuCu) 双金属纳米颗粒的点高度依赖于其组成和结构,偏离了标准预测. 由于原子扩散的增加,无序合金的点较低.

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Thermodynamics: Activity Coefficient01:24

Thermodynamics: Activity Coefficient

Activity is the measure of the effective concentration of the species in solution. It can be expressed as the product of the molar concentration of the species and its activity coefficient. The activity coefficient is a dimensionless quantity and depends on the total ionic strength of the solution.
The activity coefficient is a measure of the deviation from ideal behavior. When the ionic strength of the solution is minimal, the activity coefficient of an ionic species is close to unity, making...