Practice Summary (1.7) - Fuel Cells - Renewable Energy Engineering

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8 questions

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6 sample questions

Question 1.
What is the main byproduct of hydrogen fuel cells?
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Think about what happens when hydrogen and oxygen react.
Question 2.
Name one application of fuel cells.
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Consider devices that need a reliable power source.
3Question 3.
What is the main advantage of fuel cells over conventional combustion engines?
- A. Higher emissions
- B. Continuous fuel supply
- C. Direct energy conversion with high efficiency
- D. More mechanical parts
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Consider the key properties of energy conversion.
4Question 4.
Fuel cells require a continuous supply of what?
- True
- False
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Think about the difference between fuel cells and batteries.
Question 5.
If a fuel cell operates at high temperatures, how does this affect its efficiency compared to low-temperature fuel cells?
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Consider the role of temperature in thermodynamic processes.
Question 6.
Discuss the significance of the Gibbs free energy change in the context of fuel cell applications in sustainable energy.
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Reflect on how energy transformations relate to sustainable practices.

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