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What is an electrochemical cell that generates electrical energy?

Answer 1

An electrochemical cell is a device that uses two electrodes to carry out electron-transfer reactions that force electrons to travel on a wire that can be used as a source of electrical energy.

Electrochemical reactions always involve the transfer of electrons between reactants to lower the overall energy of a system.

In electrochemical cells, the oxidation (electron-generating) and reduction (electron-consuming) reactions take place at electrodes in physically separate containers.

In the diagram below, the electrons are transferred between the electrodes along a wire, which allows the device to be the source of electrical energy to power a load (e.g., a motor or other electrical device).

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Answer 2

Naomi Aronson

An electrochemical cell that generates electrical energy is called a battery.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.