Hydrogen Fuel Cells

What is fed into the anode compartment of the hydrogen fuel cell?

• Hydrogen gas

• Oxygen gas

• Water

• Electrolyte

If the hydrogen fuel cell was operating under acidic conditions, what electrolyte could be used?

• NH3

• NaOH

• KOH

• H₃PO₄

Complete the sentence:

The electrodes in a hydrogen fuel cell are usually lined with or made up of a catalyst, which is most commonly...

• Platinum

• Iron

• Aluminium

• Nickel

Tags

NGSS.HS-PS1-1

NGSS.HS-PS3-3

What is the balanced overall equation for a hydrogen fuel cell?

• 2H₂(g) + O₂(g) → 2H₂O(l)

• 2H₂O(l) + O₂(g) + → 4OH^-(aq)

• H₂(g) + O₂(g) → 2H₂O(l)

• H₂ (g) + 2OH^- (aq) → 2H₂O(l)

A fuel cell converts facilitates the conversion between which two types of energy?

• chemical to electrical

• chemical to heat

• electrical to chemical

• heat to electrical

Tags

NGSS.HS-PS3-3

In a fuel cell, oxidation occurs at the anode.

• true

• false

Since a fuel cell is compartmentalised, ions move from the anode to the cathode through the porous electrolyte.

• true

• false

What is the primary reaction in a hydrogen-oxygen fuel cell?

• Hydrogen combusts with oxygen to produce carbon dioxide.

• Hydrogen reacts with oxygen to produce water and electrical energy.

• Oxygen reacts with carbon to form carbon monoxide.

• Hydrogen reacts with nitrogen to form ammonia.

What is the role of the electrolyte in a hydrogen-oxygen fuel cell?

• To transfer electrons directly between electrodes.

• To facilitate the movement of ions between the anode and cathode.

• To provide a source of hydrogen gas.

• To produce water as a byproduct.

What material is commonly used as the electrolyte in hydrogen-oxygen fuel cells?

• Sulfuric acid.

• Potassium hydroxide.

• Sodium chloride.

• Hydrochloric acid.