What is Electrochemical: Definition and 65 Discussions

Electrochemistry is the branch of physical chemistry concerned with the relationship between electrical potential, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electrical potential as an outcome of a particular chemical change, or vice versa. These reactions involve electrons moving between electrodes via an electronically-conducting phase (typically, but not necessarily, an external electrical circuit such as in electrolessplating), separated by an ionically-conducting and electronically insulating electrolyte (or ionic species in a solution).
When a chemical reaction is effected by a potential difference, as in electrolysis, or if electrical potential results from a chemical reaction as in a battery or fuel cell, it is called an electrochemical reaction. Unlike chemical reactions, in electrochemical reactions electrons (and necessarily resulting ions), are not transferred directly between molecules, but via the aforementioned electronically- and ionically-conducting circuits, respectively. This phenomenon is what distinguishes an electrochemical reaction from a chemical reaction.

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  1. W

    Silver-Cadmium Electrochemical Cell

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  2. S

    Electrochemical capacitors/ ionic dielectrics ?

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  3. K

    Describe an electrochemical cell

    Describe an electrochemical cell that would determine the solubility product constant at equilibrium for cupric hydroxide and calculate it. I'm totally lost on this one, any help is greatly appreciated.
  4. P

    Finding which of two metals in an electrochemical cell reduces

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  5. M

    How Do Power Lines Influence Underground Metal Corrosion?

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  6. Andy Resnick

    What is the volume of fluid that must flow through the semipermeable membrane?

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  7. V

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  8. D

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  9. L

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  10. L

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  11. M

    Electrochemical Cell Question.

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  12. cepheid

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  13. C

    Can Adding Electricity to an Electrochemical Cell Speed Up the Reaction?

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  14. C

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  15. A

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