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Electrochemical cell

Posted: Fri Feb 14, 2020 1:06 am
by MaryBanh_2K
I'm confused about how an electrochemical cell operates. I understand that oxidation occurs at the anode and reduction occurs at the cathode, but overall what is the charge of the cell and what is the meaning of this circuit?

Re: Electrochemical cell

Posted: Fri Feb 14, 2020 6:24 pm
by 005324438
Basically how a cell works is that it separates two materials that can create a redox reaction, but allows them to be connected by a material that can conduct electricity. When this connection is made, the two species are allowed to react, and electrons flow through the circuit, powering it. When these materials reach equilibrium, electricity doesn't flow anymore, and the battery dies. For rechargeable batteries, the reaction is reversible, and forcing electrons through the system in the opposite way they're released reverses the reaction, renewing the energy source.

Re: Electrochemical cell

Posted: Mon Feb 17, 2020 12:03 am
by 005162520
For the reverse reaction, how is the electron flow ? Does it shift the oxidation and reduction sides?

Re: Electrochemical cell

Posted: Mon Feb 17, 2020 2:14 pm
by Mitchell Koss 4G
There is not really a shift but more of a connection that allows e- to flow

Re: Electrochemical cell

Posted: Tue Feb 18, 2020 6:34 pm
by 805097738
So this redox reaction occurs within a single cell?