The formation of the oxide ion requires first an exothermic and then a – InterviewSolution

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1.	The formation of the oxide ion requires first an exothermic and then an endothermic step as shown below (a) Og+e−=O−g △Hcirc=−142kjmol−1 (b) Og +e−=O2−g △Hcirc=844kjmol−1 This is because
Answer» The formation of the oxide ion requires first an exothermic and then an endothermic step as shown below (a) $O_{g} + e^{-} = O_{g}^{-} △ H^{c i r c} = - 142 k j m o l^{- 1}$ (b) $O_{g} + e^{-} = O_{g}^{2 -} △ H^{c i r c} = 844 k j m o l^{- 1}$ This is because

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