How is ammonia manufactured by Haber's process ? Explain the reactions of ammonia with
`"CuSO"_(4_(("aq")))`

Explanation

On a large scale , ammonia is manufactured by Haber.s process. `N_(2)(g) + 3H_(2)(g) harr 2NH_(3)(g), triangle_(f) H^(@) = -46.1. KJ""mol^(-1)`
The optimum conditions for production of ammonia are a pressure of about `2000 xx 10^(5)`Pa and a temperature of 700K. Iron oxide is the catalyst with small amounts of `K_(2)O` and `Al_(2)O_(3)`.

Compressed mixture of `N_(2) " and " H_(2)` in the volume ratio is heated to 700K at a pressure of 200 atm and passed over finely divided iron oxide mixed with small amounts of `K_(2)O " and " Al_(2)O_(3)`. Ammonia formed is liquified and unreacted mixture of `N_(2) " and " H_(2)` again pumped into catalytic chamber.