A company uses forklift trucks for 8 hours each day inside an enclosed warehouse. It is considering replacing its diesel forklift trucks with forklift trucks powered by hydrogen/oxygen fuel cells.
The hydrogen would be made from natural gas.
| Power source | Carbon dioxide released inside the warehouse per 8 hours / kg | Nitrogen oxides released inside the warehouse per 8 hours / g | Carbon dioxide released when making and delivering the fuel per 8 hours of use / kg |
|---|---|---|---|
| Diesel engine | 19 | 28 | 4 |
| Hydrogen/oxygen fuel cell | 0 | 0 | 12 |
A manager claims:
'Replacing the diesel forklift trucks with hydrogen/oxygen fuel cell forklift trucks will improve air quality inside the warehouse and eliminate carbon dioxide emissions overall.'
Evaluate this claim.
Use the information in the table and your knowledge of fuel cells.
131 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.