Chemistry · Chemical Thermodynamics
From the given thermochemical data: O(g) + e- → O-(g) ; ΔH = -141.4 kJ mol-1 O-(g) + e- → O2-(g) ; ΔH = +790.8 kJ mol-1 Calculate the total energy change for the production of O2-(g) from O(g).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1+932.2 kJ mol-1
- 2-932.2 kJ mol-1
- 3+649.4 kJ mol-1✓
- 4-282.8 kJ mol-1
Correct answer
+649.4 kJ mol-1
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