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The Haber Process. An essential industrial process. The Haber Process. This reaction makes ammonia out of hydrogen and nitrogen. The nitrogen comes from the air (78% N). You don’t need to worry about where the hydrogen comes from!. The Haber Process.

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The Haber Process


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    1. The Haber Process An essential industrial process

    2. The Haber Process • This reaction makes ammonia out of hydrogen and nitrogen. • The nitrogen comes from the air (78% N). • You don’t need to worry about where the hydrogen comes from!

    3. The Haber Process • The Haber process is a REVERSIBLE reaction N2(g) + 3H2(g) 2NH3(g) (+ heat) nitrogen + hydrogen ammonia A reversible reaction is one where the products of the reaction can themselves react to produce the original reactants.

    4. The Haber Process

    5. The Haber Process • You need to LEARN the industrial conditions this reaction occurs in off by heart – this is a favourite exam question!!! • Industrial conditions: PRESSURE: 200 atmospheres TEMPERATURE: 4500C CATALYST: Iron

    6. The Haber Key facts • H and N are mixed in a 3:1 ratio • Because the reaction is reversable not all the nitrogen and hydrogen will convert to ammonia. • The ammonia forms as a gas but cools and liquefies in the condenser • The H and N which do not react are passed through the system again so they are not wasted.