GCSE Chemistry - Fuel Cells #45

The video tutorial explains the hydrogen-oxygen fuel cell, a type of electrochemical cell that converts chemical energy into electrical energy. It details the structure, including the electrolyte, anode, and cathode, and describes the process of oxidation and reduction that generates electricity. The tutorial also discusses the pros and cons of fuel cells, highlighting their potential to replace fossil fuels and batteries in vehicles due to their abundance and low pollution, while noting challenges like storage and production energy requirements.

What is the primary function of a hydrogen-oxygen fuel cell?

• To convert electrical energy into chemical energy

• To produce hydrogen gas

• To store electrical energy

• To convert chemical energy into electrical energy

In a hydrogen-oxygen fuel cell, which component allows ions to move through?

• Catalyst

• Electrolyte

• Wire

• Electrodes

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

• To reduce oxygen

• To store electrons

• To produce heat

• To oxidize hydrogen

What is the main byproduct of the reaction in a hydrogen-oxygen fuel cell?

• Carbon dioxide

• Methane

• Water

• Nitrogen

Which of the following is a major advantage of hydrogen-oxygen fuel cells?

• They are easy to store

• They have a long lifespan

• They are complex devices

• They produce carbon dioxide

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

• It is easy to store

• It is abundant

• It requires a lot of space

• It is non-explosive

Why is the production of hydrogen fuel considered a downside?

• It is inexpensive

• It produces no waste

• It often relies on fossil fuels

• It is energy-efficient