Balancing the Haber Process

Explain why the Haber process is based on a delicate balancing act involving reaction energy, reaction rate and equilibrium



  • A high rate of reaction and a high yield are both desirable in the Haber process.
  • Both the rate of reaction and the yield are dependant on temperature.
  • As temperature increases, the rate of reaction increases while the yield decreases, and vice versa.
  • Thus, a moderate compromise temperature is required that will balance competing demands of reaction rate and yield, allowing as much ammonia as possible to be produced in the shortest time.
  • Temperatures for the reaction are typically in the range of 400°C to 500°C.

Easychem - Balancing the Haber Process


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