How are hydrogen-powered cars fueled?

How are hydrogen-powered cars fueled?

• A. Water Is Electrolyzed To Produce Hydrogen And Oxygen
• B. Hydrogen Gas Is Extracted From The Air
• C. Hydrogen Is Produced By Combustion Of Water
• D. Oxygen Is Reduced To Water

Answer: (A)

Hydrogen-powered cars rely on hydrogen gas as their fuel, which is stored and then used in a fuel cell to generate electricity for the motor. A common way to supply that hydrogen is to split water into hydrogen and oxygen using electricity—a process called electrolysis. When electricity passes through water, the H–O bonds break and hydrogen gas is produced for fueling, while oxygen is released as a byproduct. The other ideas aren’t practical: hydrogen isn’t feasibly pulled from air, water can’t be burned to yield hydrogen, and reducing oxygen to water would consume hydrogen rather than create it.

Hydrogen-powered cars rely on hydrogen gas as their fuel, which is stored and then used in a fuel cell to generate electricity for the motor. A common way to supply that hydrogen is to split water into hydrogen and oxygen using electricity—a process called electrolysis. When electricity passes through water, the H–O bonds break and hydrogen gas is produced for fueling, while oxygen is released as a byproduct. The other ideas aren’t practical: hydrogen isn’t feasibly pulled from air, water can’t be burned to yield hydrogen, and reducing oxygen to water would consume hydrogen rather than create it.