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奔鲨

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注册: 2007-11-02
性别: GG
专业: 环境分析化学

[交流] 有几个题，高手看看，给个思路~

1． What evidence exists to support the statement: “Some heterogeneous chemical reactions occurring on solids in contact with gases may in fact have an electrochemical mechanism.” Give one or two example to illustrate the type of mechanism which may be involved.

此题是应该考虑异相气体吸附、固体催化反应（如合成氨）还是气体电极的反应呢？

2． In what way is the situation at the electrode/electrolyte interface any different from that in the bulk of the electrolyte?

除了答界面电场的存在以及浓度差异外，还有什么么？

3． Calculate the charge density on the metal as a function of potential and then the capacitance as a function of potential from the electrocapillary data in following table.
Table: Variation of Interfacial Tension of a Mercury-1.0 mol/L CsCl Interface with Potential Difference

Potential difference, mV vs reversible calomel electrode Interfacial tension dynes/cm Potential difference, mV vs reversible calomel electrode Interfacial tension dynes/cm
-0 345.0 -700 419.9
-100 367.4 -800 414.0
-200 397.1 -900 405.6
-300 410.5 -1000 395.1
-400 418.7 -1100 382.9
-500 422.6 -1200 369.2
-600 422.9 -1300 3353.669.2

最困惑的一个题！！！
给了数据，但是要让给出电荷密度和电容与电位之间的函数关系……
曲线拟合？