Final answer:
The CAC-A process uses a high-current electric arc with the end of a carbon-graphite electrode to melt the base metal.
Step-by-step explanation:
The CAC-A process uses a high-current electric arc between the base metal and the end of a D. A carbon-graphite electrode to melt the base metal. It's essential to note that in processes involving molten salts and high temperatures, such as the CAC-A process, the electrode potentials for molten salts are likely to differ significantly from the standard cell potentials. These standard potentials are typically compiled for the reduction of hydrated ions in aqueous solutions, under standard conditions.