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Enthalpy of Formation

AP Chemistry· difficulty 3/5

ΔH°_rxn equals

  • A

    Σν_r ΔH°_f − Σν_p ΔH°_f

  • B

    ΔS° × T

  • C

    Σν_p ΔH°_f (products) − Σν_r ΔH°_f (reactants)

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  • D

    −RT ln K

Explanation

Formation enthalpies: products minus reactants, weighted by stoichiometry.

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