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Chemical cells and fuel cells

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Question 5

Hydrogen and oxygen gases react within a hydrogen fuel cell to produce electricity.

Which chemical equation represents the overall reaction that occurs in this fuel cell?

2H2O→2H2+O22\text{H}_2\text{O} \rightarrow 2\text{H}_2 + \text{O}_22H2​O→2H2​+O2​

H2+O2→H2O2\text{H}_2 + \text{O}_2 \rightarrow \text{H}_2\text{O}_2H2​+O2​→H2​O2​

2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}2H2​+O2​→2H2​O

H++OH−→H2O\text{H}^+ + \text{OH}^- \rightarrow \text{H}_2\text{O}H++OH−→H2​O

Chemical cells and fuel cells Questions

  1. GCSE
  2. /Chemistry
  3. /Chemical cells and fuel cells

Practise Edexcel GCSE Chemistry Chemical cells and fuel cells with exam-style questions for Foundation and Higher tier. 17 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank