Question

a fuel cell is an electrochemical device that combines hydrogen and oxygen to produce

a. water
b. syngas
c. sulfur
d. hydrogen peroxide

Explanation:

A fuel cell is an electrochemical device. The chemical reaction in a fuel cell is \(2H_2 + O_2 = 2H_2O\). So hydrogen and oxygen react to produce water. Syngas is a mixture of \(CO\) and \(H_2\). Sulfur is not involved in the reaction of hydrogen and oxygen in a fuel cell. Hydrogen peroxide (\(H_2O_2\)) is not the product of the reaction between \(H_2\) and \(O_2\) in a fuel cell under normal operating conditions.

Answer:

a. Water