1. | Carbon and hydrogen act as suitable reducing agents for metal sulphides |
2. | The \(\Delta_f G^0\) of the sulphide is greater than those for \(C S_2\) and \(\mathrm{H}_2 \mathrm{~S}\) |
3. | The \(\Delta_f G^0\) is negative for roasting of sulphur ore to oxide. |
4. | Roasting of the sulphide to the oxide is thermodynamically feasible |
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