Explain Haber's Process?

It s a industrial method to prepare ammonia. When one mole of N₂ and 3 mole of H₂ react at 500°C temperature and 200-900 atm pressure in the presence of finely divided iron catalyst containing Molybdenum catalyst promotor , gives ammonia.

$$\begin{gathered} N_2 +\hspace{0.17em}3H_2 \to 2N{H}_3 \\ △H of the above reaction is -92 KJ \end{gathered}$$



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