Ammonia

Ammonia

1. Ammonia = NH3

2. Used in fertiliser because of nitrogen.

3. Made by forcing Nitrogen and Hydrogen to combine together.

   • Needs special conditions because Nitrogen is extremely unreactive.

4. Really important for food growth.

5. Reversible Reaction

   • As soon as ammonia is made it starts to decompose back to nitrogen + hydrogen.
   • Equilibrium - Reaction one way is the same rate as the other way.
     • Rate of the reaction in both directions is the same.
   • The point of equilibrium can be changed.

6. The reaction is done on an industrial scale under controlled conditions.

   • Rate
     • Heat up = more energy = faster reaction = more collisions and harder collisions
     • Catalyst (Increases number of successful collisions)
     • Increase pressure (brings particles closer together)

7. Yield

   • The yield depends on the point of equilibrium. Anything that encourages the forward reaction will increase the yield of ammonia.