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Consider the ΔG°f and ΔH°f (kJ/mol) for the following oxides. Which oxide can be most easily decomposed to form the metal and oxygen gas?(a) ZnO (ΔG° = - 318.4, ΔH° = - 348.3)(b) Cu2O(ΔG° = - 146.0, ΔH° = - 168.8)(c) HgO (ΔG° = - 58.5, ΔH° = - 90.8)(d) PbO (ΔG° = - 187.9, ΔH° = - 217.3) |
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Answer» Correct option (c) HgO (ΔG° = - 58.5, ΔH° = - 90.8) Oxide with lowest –ve ΔG° |
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