An autonomous underwater vehicle (AUV) is being designed to map the ocean floor over long-endurance missions.
Engineers are deciding whether to power the AUV using hydrogen-oxygen fuel cells or rechargeable chemical cells (such as lithium-ion batteries).
The reaction that takes place in a fuel cell is:
hydrogen+oxygen→water \text{hydrogen} + \text{oxygen} \rightarrow \text{water} hydrogen+oxygen→waterEvaluate the advantages and disadvantages of using hydrogen-oxygen fuel cells rather than rechargeable chemical cells to power this underwater vehicle.
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.
