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Questions and Answers
What is the electrolyte used in an alkaline fuel cell?
What is the electrolyte used in an alkaline fuel cell?
- Aqueous solution of KOH (correct)
- Concentrated phosphoric acid
- Ceramic oxide
- Molten carbonates
Why can't carbon-containing fuels be used in an alkaline fuel cell?
Why can't carbon-containing fuels be used in an alkaline fuel cell?
- Carbon-containing fuels are incompatible with the electrolyte
- CO2 formed reacts with the electrolyte, reducing efficiency (correct)
- CO2 formed damages the catalyst
- Carbon-containing fuels produce excess heat
What is the operating temperature range of a solid oxide fuel cell?
What is the operating temperature range of a solid oxide fuel cell?
- 100-160°C
- 160-220°C
- 650-1000°C (correct)
- 600-650°C
What is the function of platinum in a phosphoric acid fuel cell?
What is the function of platinum in a phosphoric acid fuel cell?
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Why is a catalyst not required in a molten carbonate fuel cell?
Why is a catalyst not required in a molten carbonate fuel cell?
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