Chem 116 - General Chemistry II

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Gibbs Free Energy, Spontaneity, and Equilibrium
Reaction Spontaneity and Temperature
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Calculating the Gibbs Free Energy Change I
2 W(s) + 3 O2(g) ≡ 2 WO3(s) ΔH˚=-1686 kJ
At 25˚C, is this reaction spontaneous or nonspontaneous?
At what temperature will this reaction change in spontaneity?
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Calculating the Gibbs Free Energy Change II
2 O3(g) ≡ 3 O2(g)
ΔGf˚ O3 = 163 kJ/mol
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Determining the Numberical Value of K
C(s, graphite) ≡ C(s, diamond) ΔG˚= 2.9 kJ/mol at 25 °C
At 25˚C, what is the numerical value of K for this conversion?
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