Standard Reaction Entropy (ΔS°rxn = Σ S°(products) − Σ S°(reactants))

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ΔS°rxn = Σ S°(products) − Σ S°(reactants)

What each symbol means

SymbolWhat it stands for
Standard molar entropy (J mol⁻¹ K⁻¹)

When to use this

Standard states; absolute entropies (not formation).