The Haber Process

• N2 + 3 H2  ⇌ 2 NH3
• Nitrogen + hydrogen ⇌ ammonia
• Done in 450 C , 200 atm and an Iron catalyst
• Reaction is exothermic
• 450° because the relatively low temperature shifts the equilibrium to the exothermic side of reaction
• 200 atm pressure shifts the equilibrium to the side with fewer number of moles
• Iron catalyst lowers amount of activation energy needed for reaction to take place
• When phosphate rock reacts with NPK acids

  A) Calcium nitrate

  B) phosphoric acid

  C) Single superphosphate

  D) Triple superphosphate

  
• Industrial vs Laboratory method for making ammonium sulphate

  A) 60C

  B) 450C

  C) Continuous

  D) batch

  E) quickly

  F) slowly

  G) high