Lecture 18 slides

is g positive or negative g reaction g products g

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Unformatted text preview: G products – G reactants ΔG = ΔH - TΔS Changes in Free Energy Knowing the direction of the CHANGE in free energy tells us a lot about a reaction... • Is ΔG POSITIVE or NEGATIVE? ΔG reaction = G products – G reactants ΔG = ΔH - TΔS 10 Positive ΔG •  The products of the reaction contain MORE free energy than the reactants  ΔH is higher OR ΔS is lower OR both   Endergonic (endothermic)   INPUT of energy required Positive ΔG 11 Negative ΔG •  The products of the reaction contain LESS free energy than the reactants  ΔH is lower OR ΔS is higher OR both   Exergonic (ex...
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