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Calculate the equilibrium constant at 298.15 K for each of the following reactions from the value...

Calculate the equilibrium constant at 298.15 K for each of the following reactions from the value of ΔG° given. Please keep 2 significant figures.

(a)

H2(g) + 2 Na(s) → 2 NaH(s)

ΔG° = −66.9 kJ/mol

K=

(b)

4 NO2(g) + O2(g) → 2 N2O5(g)

ΔG° = 29.2 kJ/mol

K=

(c)

SiO2(s) + 2 Cl2(g) → SiCl4(l) + O2(g)

ΔG° = 236.5 kJ/mol

K=

†

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