The Haber Process
- Created by: HLeiper
- Created on: 17-04-14 15:44
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- The Haber Process
- Nitrogen for the air and Hydrogen from natural gas or cracking of hydrocarbons make ammonia
- Uses
- Ammonia is used to make nitric acid
- react with nitric acid to get fertilisers - plants need protein
- if soil isn't fertile - ammonium nitrate is used
- Process
- Pressure at 200 atmospheres because forward reaction favours it - best % yield
- Forward reaction exothemic so temp at 450 degrees to stop the equilibrium going the wrong way but reaction is still fast
- Ammonia gas formed - cooled, liquifies and removes
- Iron catalyst makes reaction faster
- Unused N2 and H2 recycled
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