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Gibbs Free Energy and Equilibrium definitions

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  • Gibbs Free Energy

    A thermodynamic quantity used to predict if a reaction can occur without external input, reflecting both enthalpy and entropy changes.
  • Spontaneous Reaction

    A process that proceeds on its own, increasing disorder and requiring no outside energy to occur.
  • Entropy

    A measure of disorder or randomness, with higher values indicating more disordered systems.
  • Delta G

    A value representing the change in free energy during a reaction, indicating favorability and direction.
  • Standard Free Energy Change

    A reference value for spontaneity, calculated under set temperature and pressure, allowing comparison between reactions.
  • Exergonic Reaction

    A process that releases energy, resulting in products with lower free energy than reactants and a negative free energy change.
  • Endergonic Reaction

    A process that absorbs energy, producing products with higher free energy than reactants and a positive free energy change.
  • Equilibrium

    A state where forward and reverse reactions occur at equal rates, causing no net change in reactant or product concentrations.
  • Equilibrium Constant

    A ratio reflecting the relative amounts of products and reactants at equilibrium, used to predict reaction direction.
  • Directionality

    The tendency of a reaction to proceed toward either products or reactants, influenced by the equilibrium constant.
  • Steady State

    A condition where concentrations of reactants and products remain stable over time, despite ongoing input or output.
  • Thermodynamic Favorability

    A characteristic of processes that can occur without external energy, often associated with increased disorder and energy release.
  • Reactant

    A starting substance in a chemical process, whose transformation leads to product formation.
  • Product

    A substance formed as a result of a chemical process, present after the transformation of reactants.