Is reaction of nitrogen and oxygen an endothermic reacti?

The reaction of nitrogen (N₂) and oxygen (O₂) to form nitrogen oxides (NO and NO₂) is generally considered an endothermic process. This is because it requires a significant amount of energy to break the strong triple bond in nitrogen molecules, as well as the double bond in oxygen molecules. The energy absorbed during the reaction typically exceeds the energy released from the formation of the products, leading to an overall energy intake.