At 273 K,ΔG° for the Reaction

question 54

Multiple Choice

At 273 K,ΔG° for the reaction
2 C(s) + O₂(g) → 2 CO(g)
Is about -280 kJ,and at 1480 K is about -580 kJ.
For the reaction
2 Zn(s) + O₂(g) → 2 ZnO(s)
ΔG° at 273 K and 1480 K,respectively,is -640 and -280 kJ.Calculate ΔG° at 273 K and 1480 K,respectively,for the reduction of zinc oxide by carbon.

• A)+180 and -150 kJ
• B)+360 and -300 kJ
• C)-360 and +300 kJ
• D)-180 and +150 kJ

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