Identify each chemical reaction as endothermic or exothermic based on its description.

Exothermic.

Explanation:

So if the sum of the enthalpies of the reactants is greater than the products, the reaction will be exothermic.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

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