Economics of Haber process 0.0 / 5 ? ChemistryHaber and industrial processesGCSEAQA Created by: CharCreated on: 16-05-13 18:04 The products have fewer ........ than reactants Molecules of gas 1 of 8 So the higher the pressure... The greater yield of ammonia 2 of 8 Why is the higher pressure bad? More energy needed to compress the gas 3 of 8 So they need... Stronger reaction vessels and pipes which increases cost 4 of 8 To produce greatest yield of ammonia, the temperatures need to be? Lower 5 of 8 This is because... The forward reaction is exothermic 6 of 8 HOWEVER, too low a temperature is bad because... The reaction rate decreases and the iron catalyst becomes ineffective 7 of 8 So... This would take a longer time to produce any ammonia 8 of 8
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