GCSE CHEMISTRY
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GCSE Chemistry•GCSE Chemistry
State the raw materials used in the manufacture of ammonia - answer-nitrogen from air 
hydrogen from natural gas 
 
State a use for N₂ - answer-making ammonia 
 
The following reaction is used to manufacture ammonia in the Haber process 
N₂ + 3H₂ → 2NH₃ ΔH = -92KJ/mol 
The reaction is carried out at 450°C but the reaction would be faster if a higher temperature were used. 
Suggest why a higher temperature is not used in the Haber process - answer-Yield would decrease and energy costs...
- Exam (elaborations)
- • 84 pages's •
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GCSE Chemistry•GCSE Chemistry