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What is the role of hydrogen in fuel cells?

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Question: What is the role of hydrogen in fuel cells?

Options:

  1. To act as a catalyst
  2. To provide energy through combustion
  3. To produce electricity through a chemical reaction
  4. To store energy

Correct Answer: To produce electricity through a chemical reaction

Solution: 

In fuel cells, hydrogen reacts with oxygen to produce electricity, water, and heat, making it a clean energy source.

What is the role of hydrogen in fuel cells?

Practice Questions

Q1
What is the role of hydrogen in fuel cells?
  1. To act as a catalyst
  2. To provide energy through combustion
  3. To produce electricity through a chemical reaction
  4. To store energy

Questions & Step-by-Step Solutions

What is the role of hydrogen in fuel cells?
  • Step 1: Understand that a fuel cell is a device that generates electricity.
  • Step 2: Know that hydrogen is a key fuel used in fuel cells.
  • Step 3: Learn that hydrogen reacts with oxygen in the fuel cell.
  • Step 4: Recognize that this reaction produces electricity, water, and heat.
  • Step 5: Remember that this process is clean because it mainly produces water as a byproduct.
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