Chemistry - The Haber Process


How The Haber Process Works

1. Collect and purify nitrogen and hydrogen gases

2. Pass gases over iron catalyst to form ammonia gas - must be done at a temperature of 450*C and a pressure of 200 atm

3. Ammonia gas is condesed

4. Recycle unused hydrogen and nitrogen to make more ammonia

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Gases Involved

The hydrogen used is obtained by reacting methane found in ntaural gas with steam.

The nitrogen used is obtained from the air.

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Condition Changes

The catalyst has no effect on the position of equilbirum, it just increases rate of reaction in both directions, so the dynamic equilibrium is reached faster.

Increasing concentration of a reactant favours the forward reaction to produce more products

Decreasing the concentration of a reactant favours the backwards reaction to produce more reactants.

The forward reaction in the Haber Process is exothermic.

200 atms produces a good amount of ammonia and is safer and cheaper.

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