Question

The factor of ΔG values is important in
metallurgy. The ΔG values for the following
reactions at 800ºC are given as :
S₂ (s)+ 2O₂ (g) ⟶ 2SO₂ (g) ; ΔG = – 544 kJ
2Zn(s)+ S₂ (s) ⟶ 2ZnS(s) ; ΔG = – 293 kJ
2Zn(s)+ O₂ (g) ⟶ 2ZnO(s) ; ΔG = – 480 kJ
Then DG for the reaction :
2ZnS(s) + 3O₂ (g) ⟶ 2ZnO(s) + 2SO₂ (g)
will be :
(a) –357 kJ (b) –731 kJ
(c) –773 kJ (d) –229 kJ

Answer 1

Answer:

(c) –773 kJ

Explanation:

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