응용화학실험 - 화학 전지와 전기 화학적 서열

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응용화학실험 - 화학 전지와 전기 화학적 서열에 대한 보고서 자료입니다.

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ltaic cells are basically batteries. If a shiny piece of copper is placed into a solution of silver nitrate, a spontaneous reaction occurs. A grayish white silver deposit if formed on the copper and the solution turns blue because of copper (II) nitrate.
No usable energy could be harnessed from this reaction because it is dissipated as heat.
The same chemical reaction can occur and produce electricity if it was placed in a galvanic cell. A galvanic cell consists of two containers with a salt bridge between them. The two containers each store the half-reactions of the equation above.
reduction:
oxidation:
This works because the solutions in both compartments, or half-cells, remain electrically neutral. The salt bridge permits ions to enter or leave the solutions.
The electron flow from the anode to the cathode is what creates electricity. In a galvanic cell, the cathode is positive while the anode is negative, while in a electrolytic cell, the cathode is negative while the anode is positive.
References
1. http://www.wqa.org/Glossary/electrolytic-cell.html
2. http://library.advanced.org/3659/electrochem/redox.html
3. http://library.advanced.org/3659/electrochem/galvanic.html

키워드

응용화학,   실험,   화학전지,   전기화학적,   서열