However, you might be thinking about the concept of cell potential. Here's the breakdown:
* Cell potential refers to the difference in electrical potential between the two electrodes of an electrochemical cell. This potential can be positive or negative, depending on the specific chemical reaction happening in the cell.
* Negative cell potential indicates that the reaction is non-spontaneous under standard conditions. This means that energy is required to drive the reaction, and it won't happen on its own. This kind of cell would be considered an electrolytic cell. You need an external power source to force the reaction to occur.
* Positive cell potential indicates that the reaction is spontaneous under standard conditions. This means the reaction releases energy and can be used to generate electricity. This kind of cell is a galvanic cell or a voltaic cell.
In summary:
* No individual cell has a negative voltage.
* A cell can have a negative cell potential, which indicates a non-spontaneous reaction and means the cell is electrolytic.
* A cell can also have a positive cell potential, indicating a spontaneous reaction and meaning the cell is galvanic.
Let me know if you have any other questions!
