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AP Chemistry/Unit 9: Applications of Thermodynamics
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Gibbs Free Energy And Equilibrium Constant

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Using the data provided for Reaction B, calculate the equilibrium constant, KK, at T=298 KT = 298\,\text{K}. Use the equation ΔG∘=−RTln⁡(K)\Delta G^\circ = -RT\ln(K) with R=8.314 J/(mol⋅K)R = 8.314\,\text{J/(mol}\cdot\text{K)}.

Reaction ΔG∘\Delta G^\circ (kJ/mol)
A 20
B -10
C 0
A

−56.9-56.9

B

56.956.9

C

10.010.0

D

0.370.37

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