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If the voltage is positive, the reaction will occur spontaneously, and therefore creates a working battery. If the voltage is negative, the reaction does no occur spontaneously, and therefore does not create a working battery.
For the first part of your answer, this means that the reaction will not occur spontaneously in the forward reaction, right?
sarahsalama2E wrote:A negative cell voltage -- reaction will occur spontaneously but in the opposite direction as compared to the forward.
A positive cell voltage--reaction will occur spontaneously.
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