Fuel cells GCSE questions
Cover the answers and try these Fuel cells checks first. The full quiz in the app includes hints.
How to use these
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Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
The overall reaction in a hydrogen fuel cell is
A fuel cell differs from a typical battery because
At the hydrogen electrode, hydrogen is
At the oxygen electrode, oxygen is
Common mistakes
- Do not write that a fuel cell is just a battery with a fancy name. A battery stores chemical energy inside; a fuel cell converts fuel that is fed in.
- Do not put oxygen being oxidised. Hydrogen is oxidised, oxygen is reduced. Getting OIL RIG backwards dumps the half-equation marks.
- Do not claim hydrogen fuel cells are always carbon-neutral. That depends on how the hydrogen was made.
- A fuel cell is not a type of rechargeable battery. You do not plug the fuel cell into the wall to reverse 2H2 + O2. You refuel it.
Answers and working
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