Final answer:
In fuel cells, two electrodes known as the anode and the cathode are sandwiched around an electrolyte. These components facilitate the electrochemical reaction that converts chemical energy directly into electrical energy. option c is correct
Step-by-step explanation:
option c is correct Fuel cells consist of two electrodes sandwiched around an electrolyte. These electrodes are called the anode and the cathode. In the context of a fuel cell, the anode is where the oxidation of the fuel occurs, which is typically a hydrogen gas, and the cathode is where the reduction occurs, often involving oxygen from the air. The electrolyte, such as KOH, plays a crucial role by allowing ions to move between the electrodes, completing the electrical circuit and allowing the fuel cell to produce electricity. Fuel cells convert chemical energy into electrical energy through an electrochemical reaction rather than a combustion process, which can be more efficient and environmentally friendly.
Fuel cells consist of two electrodes sandwiched around an electrolyte.