Links
Reversible Reactions
Revision Questions
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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.
Links
Reversible Reactions
Revision Questions
gcsescience.com The Periodic Table Index Haber Process Quiz gcsescience.com
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