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Guilherme Mazui

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What is the Difference Between Static and Dynamic Equilibrium?

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The difference between static and dynamic equilibrium lies in the state of the system and the nature of the reaction rates. Here are the key differences:

  • Static Equilibrium:
  • The system is at rest, with no motion or change.
  • The forward and backward reaction rates are zero.
  • This type of equilibrium is irreversible in nature.
  • In static equilibrium, the forces acting on an object cancel each other, and there is no movement of the object.
  • Dynamic Equilibrium:
  • The system is in a state of constant motion or change.
  • The forward and backward reaction rates are equal.
  • This type of equilibrium is reversible in nature.
  • In dynamic equilibrium, the forward and reverse reactions occur at the same rate, resulting in no net change in the concentrations of reactants and products.

In both cases, the sum of the forces acting on the system is zero, and there is no visible change in the system.

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  • What is the Difference Between Static and Dynamic Equilibrium?
  • Comparative Table: Static vs Dynamic Equilibrium

    • Comparative Table: Static vs Dynamic Equilibrium

    The main differences between static and dynamic equilibrium are:

    Static Equilibrium Dynamic Equilibrium
    There is no motion or change in the system. The reaction or system is dynamic, with the forward and reverse reactions occurring at equal rates.
    The forward and backward reaction rates are zero. The forward and backward reaction rates are equal.
    It occurs in both open and closed systems. It can only occur in closed systems.
    Used in situations where the system is in a state of rest, such as a solid at room temperature. Used in situations where the reaction is taking place in a closed system.
    Often used to describe the solubility of a solid in a liquid, where the rate of dissolution is equal to the rate of precipitation, resulting in no net change in the amount of solid in solution. The resultant force acting on both these types of equilibria in a system is zero.

    In summary, static equilibrium is a state where there is no motion or change in a system, while dynamic equilibrium is a state where the forward and reverse reactions of a chemical reaction occur at the same rate, resulting in no net change in the concentrations of reactants and products.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.