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Four steps of haber process
1. Nitrogen and hydrogen pumped through pipes
2. The pressure of the mixture of gases is increased to 200 atmospheric pressure
3. The pressurised gases are heated to 450 degrees and passed through a tank containing an iron catalyst
4. The reaction mixture is cooled so that ammonia liquifies and can be removed
5. Unreacted nitrogen and hydrogen are recycled why is
Why is iron used in haber process?
Iron acts as a catalyst
It increases rate of reaction without being used up
Why are unreacted hydrogen and nitrogen recycled?
Recycling the unused reactants saves money
Increases overall yield
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