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Hydrogen + Nitrogen ⇌ Ammonia
<chemmath> 3H23H_2(g) + N2N_2(g) <=> 2NH3⇌ 2NH_3(g) </chemmath>: The [[Chemical Reaction|reaction]] in the [[Haber Process]] will reach a state of [[Dynamic Equilibrium|dynamic equilibrium]] with an [[Equilibrium Position(Chemistry)|equilibrium position]] which can be changed by altering the [[temperature]] or [[pressure]] of the [[Reaction Mixture|reaction mixture]].
: The [[Yield (Chemistry)|yield]] can be improved by increasing the [[pressure]] inside the [[Reaction Vessel|reaction vessel]] which favours the forward [[Chemical Reaction|forward reaction]].
: The [[Haber Process]] is essential to modern agriculture as it produces [[Nitrogen]] based [[fertiliser]]s for crops. Without this the [[soil]] would run out of [[Nitrate]]s and [[plant]]s would not longer be able to [[growth|grow]].
===(Higher) Iron Catalyst and the Haber Process===
: The [[Iron]] [[catalyst]] increases the [[Rate of Reaction|rate of reaction]].
: However, this works for both the [[Forward Reaction|forward]] and [[Back Reaction|back reaction]] so it does not affect the [[Equilibrium Position(Chemistry)|equilibrium position]].
===(Higher) Pressure and the Haber Process===
: Using the [[Balanced Symbol Equation|balanced symbol equation]] for this [[Chemical Reaction|reaction]]:: <chemmath> 3H23H_2(g) + N2N_2(g) <=> 2NH3⇌ 2NH_3(g) </chemmath>: It can be seen that 4 [[Mole]]s of [[reactant]]s is needed to [[product|produce]] 2 [[Mole]]s of [[product]]s. This means a higher [[pressure]] will force the [[Equilibrium Position(Chemistry)|equilibrium position]] to favour the [[product]]s over the [[reactant]]s as they take up less [[Volume (Space)|volume]].
===(Higher) Temperature and the Haber Process===
: The [[temperature]] affects both the [[Rate of Reaction|rate of reaction]] and the [[Equilibrium Position(Chemistry)|equilibrium position]].
: A higher [[temperature]] increases the [[Rate of Reaction|rate of reaction]] because it causes the [[particle]]s of [[reactant]] to [[Collision Theory|collide]] more frequently.
: A higher [[temperature]] favours the [[Back Reaction|back reaction]] because the [[Forward Reaction|forward reaction]] is [[exothermic]] and the [[Back Reaction|back reaction]] is [[endothermic]].
:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Haber process, pages 301-303, GCSE Chemistry, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Haber process, pages 49, 209, 211, 215, 217, 219, 323, 344-5, 347, 349, GCSE Chemistry; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Nitrogen, Haber process, pages 119, 228-231, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/1782948147/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948147&linkCode=as2&tag=nrjc-21&linkId=f63dcd8345f4e49c717b39a228a36c7c ''Haber process, pages 169, 201-203, '']
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Haber process, pages 59, 68, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Haber process, page 80, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Haber process, pages 196, 200-201, Gateway GCSE Chemistry, Oxford, OCR '']