Question

N2(g) +o2(g) =2no(g) is an endothermic reaction yet it's spontaneous. Why

Answer 1

because it need energy which it get in the form of electric spark when nitrogen reacts with oxygen
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Answer 2

Answer:

The triple bond between two N atoms in N2 is very strong due to small size and thus has a high dissociation energy.Due to this a large amount of energy is required to break this bond and thus the oxidation of N2 is endothermic.

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