Is the reaction N2 (g) —> 2N (g) endothermic or exothermic and why
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The reaction N2 (g) -> 2N (g) is endothermic. This is because the reaction requires an input of energy in order to break the strong triple bond between the nitrogen atoms in N2 and form the two separate nitrogen atoms, N. The breaking of this bond requires energy, making the reaction endothermic.
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