Practice Fuel Cells (3.10.3) - Chapter 3: Electrochemistry

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6 sample questions

Question 1.
What is a fuel cell?
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Think about the relationship between fuel and energy.
Question 2.
Name one common fuel used in fuel cells.
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It is the lightest element.
3Question 3.
What do fuel cells primarily produce?
- Electricity
- Heat
- Carbon Dioxide
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Consider the main outcome of the chemical reaction.
4Question 4.
Fuel cells are more efficient than combustion engines.
- True
- False
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Think about how effective each energy system is at converting fuel into energy.
Question 5.
The efficiency of fuel cells is often stated as being 40-60%. What factors contribute to this range, and how do these factors compare to traditional energy conversion methods?
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Consider technological differences and thermodynamic principles.
Question 6.
If a hydrogen fuel cell generates 5 kW of power and operates for 3 hours, how much energy in kilowatt-hours (kWh) does it produce?
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Remember the formula for calculating energy from power and time.

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