Question

Given the balanced equation representing reaction:

N2 + energy ==> N + N
Which statement describes this reaction?
( I) Bonds are broken, and the reaction is endothermic.
(2) Bonds are broken , and the reaction is exothermic.
(3) Bonds are formed, and the reaction is endothermic.
(4) Bonds are formed, and the reaction is exothermic.

Answer 1

( I) Bonds are broken, and the reaction is endothermic.
(2) Bonds are broken , and the reaction is exothermic.
(3) Bonds are formed, and the reaction is endothermic.
(4) Bonds are formed, and the reaction is exothermic.

Answer 2

Answer: Option (1) is the correct answer.

Step-by-step explanation:

In a
`N_(2)` molecule, the nitrogen atoms are bonded together by triple bond.

Therefore, in order to break this triple bond high heat or energy has to be provided.

Thus, the reaction
`N_(2) + energy \rightarrow N + N` shows that N triple bond N is broken down as energy is absorbed by
`N_(2)` molecule.

Hence, we can conclude that in the given reaction bonds are broken, and the reaction is endothermic.