“calomel half cell”的概念、定义、翻译、参考文献-科学参考

calomel half cell

Chemistry

A type of half cell in which the electrode is mercury coated with calomel (HgCl) and the electrolyte is a solution of potassium chloride and saturated calomel. The standard electrode potential is –0.2415 volt (25°C). In the calomel half cell the reactions are
$\begin{array}{l} HgCl (s) ⇌ {Hg}^{+} {(aq) + Cl}^{-} (aq) \\ {Hg}^{+} (aq) + e ⇌ Hg (s) \end{array}$
The overall reaction is
${HgCl (s) + e ⇌ Hg (s) + Cl}^{-} (aq)$
This is equivalent to a Cl₂(g)|Cl⁻(aq) half cell.

单词	calomel half cell
释义	calomel half cell Chemistry A type of half cell in which the electrode is mercury coated with calomel (HgCl) and the electrolyte is a solution of potassium chloride and saturated calomel. The standard electrode potential is –0.2415 volt (25°C). In the calomel half cell the reactions are $\begin{array}{l} HgCl (s) ⇌ {Hg}^{+} {(aq) + Cl}^{-} (aq) \\ {Hg}^{+} (aq) + e ⇌ Hg (s) \end{array}$ The overall reaction is ${HgCl (s) + e ⇌ Hg (s) + Cl}^{-} (aq)$ This is equivalent to a Cl₂(g)\|Cl⁻(aq) half cell.
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