Reversable reactions and Equalibria
- Created by: Aisha1116
- Created on: 05-03-16 17:46
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- Equalibria and Reversable Reactions
- The symbol for a reversable reaction is:
- Reversable reaction: when products can be made back into reactants
- The point where forward and backward (reactants and products) happen at the same rate is called dynamic Equalibria
- Fritz Harbor was the 1st to make Ammonia artificiall
- Nitrogen (From air) + Hydrogen (From gas) Ammonia
- Harbor Process;
- You can get Nitrogen by burning hydrogen (H + O) in the air. Removing the oxygen leaves nitrogen
- Get Hydrogen by reacting methane with steam/ the cracking of oil
- N + H = NH3 (Exothermic)
- NH3 = N + H (Endothemic)
- Takes in heat from surroundings
- Best conditions for high yeild of ammoina
- High Temp - Approx. 450
- High temp. shirfts the equalibrium to the left decreasing the yeild of Ammonia
- Low temp produces higher yeild yet very slowly
- High Temp. increases the rate which means the Dynamic equalibrium will be reached quicker
- High Temp Approx. 200 times atmospheric pressure
- Presence of an iron catalyst
- High Temp - Approx. 450
- If you increase the pressure the equalibrium will shift the the right and will change into ammonia
- The catalyst dosent change the position of the equalibrium.
- Gives out heat
- Ammonia is a natural fertiliser
- The symbol for a reversable reaction is:
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