Which Substance(s) Listed Below Would Be Expected to Have a Standard

question 102

Multiple Choice

Which substance(s) listed below would be expected to have a standard molar Gibbs Free-Energy of formation equal to zero, D G f = 0?
I. Na + (aq)
II. O₂(g)
III. H₂ O ( )

• A) I only
• B) II only
• C) III only
• D) I and II
• E) All of these

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