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2. The bond dissociation energy of oxygen gas is 495 kJ/mole, while the enthalpy of formation of ozone gas (O3(g))is 142.3 kJ
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J/mole 10- 3302 (9) ► 03 (g8 SH; = 142.3 KJ/mole © - Os (g) - 2019 AH = 495 kJ/mole ☺ - NO(g) + O2(g) → NO, (g) + 0; (g) sh=-

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