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

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Question 1 Easy

What is the main byproduct of hydrogen fuel cells?

💡 Hint: Think about what happens when hydrogen and oxygen react.

Question 2 Easy

Name one application of fuel cells.

💡 Hint: Consider devices that need a reliable power source.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

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

💡 Hint: Consider the key properties of energy conversion.

Question 2

Fuel cells require a continuous supply of what?

True
False

💡 Hint: Think about the difference between fuel cells and batteries.

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Challenge Problems

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Challenge 1 Hard

If a fuel cell operates at high temperatures, how does this affect its efficiency compared to low-temperature fuel cells?

💡 Hint: Consider the role of temperature in thermodynamic processes.

Challenge 2 Hard

Discuss the significance of the Gibbs free energy change in the context of fuel cell applications in sustainable energy.

💡 Hint: Reflect on how energy transformations relate to sustainable practices.

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