Question

Formation of $NH_{3}$ from $N_{2}$ and $H_{2}$ is an example of:
1) Endothermic
2) Exothermic
3) Both endothermic and exothermic
4) Neither endothermic nor exothermic

Answer 1

Answer:

2) Exothermic.

When ammonia is formed a huge amount of heat is evolved.

Hope it helps.

Answer 2

Answer:

(2) EXOTHERMIC

Explanation:

When nitrogen combines with hydrogen in the presence of iron catalyst to form ammonia, a lot of heat is produced. Thus, the formation of ammonia is an exothermic reaction.

N2(g) + 3H2(g) →2NH3(g) + Heat

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