Answer: The standard free energy change for a reaction in an electrolytic cell is always positive.
Explanation:
Electrolytic cells use electric currents to drive a non-spontaneous reaction forward.
Relation of standard free energy change and emf of cell
![\Delta G^o=-nFE^0_{cell}](https://tex.z-dn.net/?f=%5CDelta%20G%5Eo%3D-nFE%5E0_%7Bcell%7D)
where,
= standard free energy change
n= no of electrons gained or lost
F= faraday's constant
= standard emf
= standard emf = -ve , for non spontaneous reaction
Thus ![\Delta G^o=(-ve)(-ve)=+ve](https://tex.z-dn.net/?f=%5CDelta%20G%5Eo%3D%28-ve%29%28-ve%29%3D%2Bve)
Thus standard free energy change for a reaction in an electrolytic cell is always positive.
The answer is C. Since aluminum reacts with chloride displacing only Copper.
Answer:
the answer is C + H2O # CO + H2.