Changes

Hydrogen + Nitrogen ⇌ Ammonia

: 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]].

===(Higher) Pressure and the Haber Process===

: Using the [[Balanced Symbol Equation|balanced symbol equation]] for this [[Chemical Reaction|reaction]]

: 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===

: 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]].