Moderate

For a reversible reaction the value of Kc is 4, if the concentration of products is reduced to half, then the value of Kc for that reaction at constant temperature will be:

Correct answer: D. 4

  • A. 2
  • B. 1.5
  • C. 3
  • D. 4

Explanation

The equilibrium constant (Kc ) for a given reaction depends only on temperature. Changing the concentrations of reactants or products will shift the equilibrium position to re establish the same Kc value, but Kc itself does not change

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About Chemical Equilibrium

Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.

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