By: Jeremy Maltais
For : Miss Cule
A German scientist call Fritz Haber born in December
1868 discovers a process at high pressure still use
today. This process was call the Haber process. This
process had being invented in the summer of 1909
by Fritz at the age of 41 years old by mixing small
partials of ammonia into air.
N2 (g) + 3 H2 (g) ⇌ 2 NH3 (g) (ΔH = −92.22 kJ•mol−1)
Because that the heat energy of this reaction is being release
this is found to be an exothermic reaction.
To favour the reaction to go in the forward direction there is 2 different
solution.
One of them is to increase the pressure of the equilibrium and do to
the greater amount of gas molecule on the left hand of the equation
than on the other side will make the reaction to move in the forward
direction.
The other one is to reduce the temperature of the reaction. Since this
reaction is exothermic meaning that it is releasing heat, reducing the
temperature of the reaction will push the reaction in the forward
direction. But by reducing the temperature of the reaction it will make
the rate of reaction get a lot slower, so the high temperature must be
use to make the reaction go fast but has a result of the high
temperature will have a lower yield of ammonia.

If you want the reaction to get faster you have to increasing
the temperature of the reaction will favour the reaction to go
forward and going faster. If you lower the temperature the
reaction will be slower and will result a higher yield of
ammonia. This reaction is usually use in temperature varying
between 400 and 450 degrees.
Catalyst has no effect on the position of the chemical equation it is
providing a pathway and lower the activation energy but increase the
reaction rate. At the end of the reaction catalyst is remaining chemically
uncharged. So basically catalyst is use to speed up the reaction by
lowering the activation of energy , which make N2 bonds and H2 bonds
are more readily broken.
The history of the Harber process start at the beginning of the
twentieth century. this process has been developed by a germant
scientist at the age of 41 years old. This process was consider to be
the most important development during the tweentieth century.
 Haber and some other chemist looked for ways of combining
nitrogen in air to form ammonia. After this combination had been
created it had begame a good starting point for fertilizer. Also during
this period of time germany was prepering for world war 1, so this
process has help creating new explosif use during and before the
war.


Haber process is still very important in todays life, and this
mainly because the ammonia is a good fertilizer, it help in the
grown of our food, it is responsible for sustaining one-third of
the earth population. So we can say that this process is a
great help for our lives.