Chemistry-

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# 2Zn+O2 3/2 →2ZnODG°=–616J 2Zn+S2→2ZnSDG°=–293J S2+2O2 3/4 →2SO2DG°=–408J DG°forthefollowingreactionis-2ZnS+3O2 3/4 →2ZnO+2SO

- –731J
- –1317J
- –501J
- +731J

## The correct answer is: –731J

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