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Explain the principles involved in the m...

Explain the principles involved in the manufacture of ammonia by Haber's process.

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(i) `N_(2)(g)+3H_(2)(g)hArr 2NH_(3)(g)`
(ii) According to Le - Chatelier.s principle, the forward reaction is favoured by low temperature high pressure.
(iii) Optimum conditions in this process are 700 K and 200 atm. Fe catalyst containing `K_(2)O` and `Al_(2)O_(3)` promoter.
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