lillysaunders
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Which of the following is true about chemical equilibrium systems?

A. They are open systems.
B. The macroscopic properties are not constant.
C. Forward and reverse reaction rates are not equal.
D. The concentrations of reactants and products are not always equal.

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MissPhiladelphia
I believe the correct answer from the choices listed above is option C. Chemical equilibrium occurs when forward and reverse reaction rates are not equal. It is the state in which both reactants and products are present in concentrations which have no further tendency to change with time.

Answer: The correct answer is option D.

Explanation:

Characteristics of chemical equilibrium:

  • Chemical equilibrium are attained is closed system.
  • The macroscopic remains constant like: volume, pressure, energy etc.
  • Rate of forward reaction is equal to the rate of backward reaction.
  • The concentration of the reactants and products remain constant.They are not always equal.

From the given options the correct option is D.

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