Respuesta :
Explanation:
Voltaic cell is a cell in which a chemical reaction occurs that leads to generation of electricity.
To calculate cell potential of a voltaic cell, the formula is as follows.
[tex]E^{o}_{cell} = E_{anode} - E_{cathode}[/tex]
= +ve
Also, a positive cell potential indicates that a reaction is spontaneous as follows.
[tex]\Delta G[/tex] = - nF[tex]E_{cell}[/tex]
= (-ve)(+ve)
= -ve
Therefore, value of [tex]\Delta G[/tex] comes out to be -ve. Therefore, it shows that when voltaic cells produce a positive overall cell potential then the reaction is spontaneous.
