Ammonia

Beschreibung

GCSE Extension Chemistry Mindmap am Ammonia, erstellt von livmills97 am 19/03/2014.
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Zusammenfassung der Ressource

Ammonia
  1. Ammonia = NH3
    1. Used in fertiliser because of nitrogen.
      1. Made by forcing Nitrogen and Hydrogen to combine together.
        1. Needs special conditions because Nitrogen is extremely unreactive.
        2. Really important for food growth.
          1. Reversible Reaction
            1. As soon as ammonia is made it starts to decompose back to nitrogen + hydrogen.
              1. Equilibrium - Reaction one way is the same rate as the other way.
                1. Rate of the reaction in both directions is the same.
                2. The point of equilibrium can be changed.
                3. The reaction is done on an industrial scale under controlled conditions.
                  1. Rate
                    1. Heat up = more energy = faster reaction = more collisions and harder collisions
                      1. Catalyst (Increases number of successful collisions)
                        1. Increase pressure (brings particles closer together)
                      2. Yield
                        1. The yield depends on the point of equilibrium. Anything that encourages the forward reaction will increase the yield of ammonia.
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