Introduction to Gibbs free energy | Applications of thermodynamics | AP Chemistry | Khan Academy

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  • Опубліковано 18 січ 2025

КОМЕНТАРІ • 4

  • @sciencenerd7639
    @sciencenerd7639 3 роки тому +4

    I am glad to see more chemistry content!

  • @Eta_Carinae__
    @Eta_Carinae__ 3 роки тому +3

    Since std free energy has constant pressure, ΔH = Q and TΔS = T(ΔQ/T) = Q, so ΔG = Q - ΔQ, right? Wouldn't that just essentially mean reaction direction is entirely determined by the energy lost?

    • @philipmsc12
      @philipmsc12 2 роки тому +6

      If your variables you subsitute for Delta H and Delta G lead you back to the gibbs free energy equation: ΔG = ΔH = TΔS, your equation should be correct!
      ΔG symbolizes Gibbs energy, when negative the reaction is spontaneous, when positive, the reaction is non-spontaneous
      ΔH symbolizes change in energy change usually in Joules
      ΔS symbolizes entropy change or the measure of randomness in a reaction
      T symbolizes temperature in Kelvins
      The reaction direction is determined by comparing Q: the reaction quotient, and K the equilibrium constant. When K is greater than Q, the reaction would proceed forward. Hopefully you are given K.
      I hope this helps! God bless!

  • @adajiowoichoadaji9219
    @adajiowoichoadaji9219 11 місяців тому

    Thanks😃