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For the following reaction and data: 1 2 ?2 (?) + ?2 (?) ⇌ ??2 (?)...

For the following reaction and data: 1 2 ?2 (?) + ?2 (?) ⇌ ??2 (?) ∆??° = 33.2 ?? ??? −1 ∆??° = −60.9 ? ??? −1? −1 ?° (?2 (?)) = 191.6 ? ??? −1? −1 ?°(??2 (?)) = 240.1 ? ??? −1? −1

a) What is S° for O2 (g) ?

b) At standard state conditions, which of the following statements is true about the reaction as written?

- Spontaneous at all temperatures

- Spontaneous at low temperatures, non-spontaneous at high temperatures

- Spontaneous at high temperatures, non-spontaneous at low temperatures

-Non-spontaneous at all temperatures

c) Calculate ΔrG° for this reaction at 25.0°C. Express your answer in kJ mol-1

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