Which one of the following reactions is most likely to have a positive ΔS°?
a) Cu2+ (aq) + 4 Cl - (aq) → CuCl42-(aq)
b) SiH4 (g) + 2O2 (g) → SiO2 (s) + 2 H2O (g)
c) SiF4 (g) + 2 H2O (g) → SiO2 (s) + 4 HF (g)
d) H2O (l) → H2O (s)
e) NO (g) + O3 (g) → NO2 (g) + O2 (g)
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