Hydrogen Fuel Cells

In the image is an acidic hydrogen fuel cell. Which electrode is the arrow pointing to?

• Cathode

• Anode

In the image is an acidic hydrogen fuel cell. Is the electrode the arrow pointing to positive or negative?

• Positive

• Negative

Tags

NGSS.HS-PS2-5

In the image is an acidic hydrogen fuel cell. The half reaction occurring at the identified electrode is...

• O₂ (g) + 4H⁺ (aq) + 4e^- → 2H₂O (l)

• O₂ (g) + 2H₂O (l) + 4e^- → 4OH^- (aq)

• H₂ (g) → 2H⁺ (aq) + 2e^-

• H₂ (g) + 2OH^- (aq) → 2H₂O (l) + 2e^-

Tags

NGSS.HS-PS1-2

Acidic fuel cells have...

• H⁺ electrolyte

• OH^- electrolyte

Alkaline fuel cells have...

• H⁺ electrolyte

• OH^- electrolyte

oxygen is a strong...

• oxidising agent

• reducing agent

Tags

NGSS.HS-PS1-2

In the image is an acidic hydrogen fuel cell. The half reaction occurring at the identified electrode is...

• O₂ (g) + 4H⁺ (aq) + 4e^- → 2H₂O (l)

• O₂ (g) + 2H₂O (l) + 4e^- → 4OH^- (aq)

• H₂ (g) → 2H⁺ (aq) + 2e^-

• H₂ (g) + 2OH^- (aq) → 2H₂O (l) + 2e^-

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-2

In the image is an acidic hydrogen fuel cell. The electrode the arrow is pointing to is the...

• Cathode

• Anode

In the image is an acidic hydrogen fuel cell. The electrode the arrow is pointing to is the...

• Positive electrode

• Negative electrode

Tags

NGSS.HS-PS1-2

In the image is an alkaline hydrogen fuel cell. The half reaction occurring at the identified electrode is...

• O₂ (g) + 4H⁺ (aq) + 4e^- → 2H₂O (l)

• O₂ (g) + 2H₂O (l) + 4e^- → 4OH^- (aq)

• H₂ (g) → 2H⁺ (aq) + 2e^-

• H₂ (g) + 2OH^- (aq) → 2H₂O (l) + 2e^-

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1