An indoor emergency lighting system in a warehouse is being designed. It will be connected to the electricity grid when the mains supply is working and must provide electricity during a power cut. Engineers are considering either a hydrogen fuel cell, with hydrogen stored at the warehouse, or a rechargeable battery.
Explain why the hydrogen fuel cell may be less suitable than the rechargeable battery for this system.
90 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.