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The Haber Process

Chemistry - Catalyst.

The industrial conditions are
3) Use an iron catalyst.

We know from reaction rates
that a catalyst can change the rate of a reaction.

With a reversible reaction, a catalyst which increases the rate
will increase the rate of both the forward and the backward reaction.
This is useful because the catalyst will cause the reaction mixture
to reach its equilibrium composition more quickly.
Note, the catalyst will not change the equilibrium composition.

In the Haber process,
the reactants can be pushed through the reaction vessel
more quickly in the presence of a catalyst,
while still having 15% conversion into ammonia.
The equilibrium mixture is then cooled,
and ammonia is removed as a liquid product.

Without the catalyst, either the conversion to ammonia
would be less than 15% in the same time,
or the reactants would need more time in the reaction vessel.

Without the catalyst,
the process would take longer and be more expensive.

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