Introduction to Fuel Cells: Advantages and Disadvantages

The video discusses hydrogen as a fuel, highlighting its benefits like being energy dense and not producing greenhouse gases. It explores hydrogen production methods, such as steam reforming and electrolysis, noting their environmental impacts. The video explains how fuel cells work, focusing on alkaline fuel cells, and outlines their advantages, like not needing recharging, and disadvantages, such as high costs and storage challenges.

What is a major environmental benefit of using hydrogen as a fuel?

• It is energy inefficient.

• It is non-renewable.

• It forms water as a byproduct.

• It produces carbon dioxide.

Which method of hydrogen production is considered non-renewable?

• Electrolysis

• Steam reforming

• Solar power

• Hydroelectricity

How do fuel cells differ from chemical cells in terms of power supply?

• Fuel cells do not generate electricity.

• Fuel cells are powered by internal fuel.

• Fuel cells require external fuel and oxygen.

• Fuel cells burn fuel like combustion engines.

What is the role of the electrolyte in a fuel cell?

• To burn the fuel

• To allow electrons to pass

• To store hydrogen

• To allow hydroxide ions to pass

In a fuel cell, what happens at the negative electrode?

• Hydrogen ions react to form electrons.

• Hydroxide ions are generated.

• Oxygen reacts to form electrons.

• Electrons are consumed.

What is a key advantage of fuel cell vehicles?

• They are very noisy.

• They do not need recharging.

• They produce pollutants.

• They are inexpensive.

What is a significant challenge in using hydrogen as a fuel?

• It is not flammable.

• It is easy to store.

• It is abundant and cheap.

• It requires robust storage tanks.