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Free Energy Change of Reactions. A + B = C + D Δ G = Δ G product – Δ G reactant ΔG = ΔH –TΔS ΔG reac = ΔG o ‘ + RT ln[C][D]/[A][B] ΔG reac = 0 ΔG o ‘ = -RT lnK eq K eq =[C][D]/[A][B] If the reaction is not at the equilibrium Q =[C]’[D]’/[A]’[B]’ ΔG = ΔG o’ + RT lnQ.
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Free Energy Change of Reactions A + B = C + D ΔG = ΔGproduct – ΔGreactant ΔG = ΔH –TΔS ΔGreac = ΔGo‘ + RT ln[C][D]/[A][B] ΔGreac = 0 ΔGo‘ = -RT lnKeq Keq =[C][D]/[A][B] If the reaction is not at the equilibrium Q =[C]’[D]’/[A]’[B]’ ΔG = ΔGo’ + RT lnQ
