The ∆G for the following reactions at 800 0 C are given as S 2 (s) + 2O 2 (g) → 2SO 2…
Chemistry · JEE Advanced · NTA Exams — Chemical Thermodynamics
The ∆G for the following reactions at 8000C are given as
S2 (s) + 2O2 (g) → 2SO2 (g); ∆G = – 544 kJ
2Zn (s) + S2 (s) → 2ZnS (s) ; ∆G = – 293 kJ
2Zn (s) + O2 (g) → 2ZnO (s); ∆G = – 480 kJ
The ∆G for the reaction
2Zn S + 3O2 (g) → 2ZnO (s) + 2SO2 (g) will be
S2 (s) + 2O2 (g) → 2SO2 (g); ∆G = – 544 kJ
2Zn (s) + S2 (s) → 2ZnS (s) ; ∆G = – 293 kJ
2Zn (s) + O2 (g) → 2ZnO (s); ∆G = – 480 kJ
The ∆G for the reaction
2Zn S + 3O2 (g) → 2ZnO (s) + 2SO2 (g) will be
- – 357 kJ
- – 731 kJ
- – 773 kJ
- – 229 kJ
Answer
(B) – 731 kJ
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