Question

Define potential difference of a celll

Answer 1

The cell potential, Ecell, is the measure of the potential difference between two half cells in an electrochemical cell. The potential difference is caused by the ability of electrons to flow from one half cell to the other.

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Answer 2

the potential difference between two points is equal to the work done per unit charge in moving a positive test charge from one point to other

the potential at a point is defined as the amount of work done per unit charge in bringing a positive test charge from infinity to that point

1 volt is equal to 1 joule by 1 coulomb