The Haber Process

1
The Haber Process

• An essential industrial process

2
The Haber Process

• This reaction makes ammonia out of hydrogen and
  nitrogen.
• The nitrogen comes from the air (78 N).
• You dont need to worry about where the hydrogen
  comes from!

3
The Haber Process

• The Haber process is a REVERSIBLE reaction
• N2(g) 3H2(g) 2NH3(g) (
  heat)
• nitrogen hydrogen ammonia
• A reversible reaction is one where the products
  of the reaction can themselves react to produce
  the original reactants.

4
The Haber Process
5
The Haber Process

• You need to LEARN the industrial conditions this
  reaction occurs in off by heart this is a
  favourite exam question!!!
• Industrial conditions
• PRESSURE 200 atmospheres
• TEMPERATURE 4500C
• CATALYST Iron

6
The Haber

• Key facts
• H and N are mixed in a 31 ratio
• Because the reaction is reversable not all the
  nitrogen and hydrogen will convert to ammonia.
• The ammonia forms as a gas but cools and
  liquefies in the condenser
• The H and N which do not react are passed through
  the system again so they are not wasted.