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Consider reaction, CaCO 3 s ⇌ CaO s + CO 2 g In a closed container at equilibrium. What would be the effect of addition of CaCO 3 on the equilibrium concentration of CO 2   ?

Options

  1. AIncreases
  2. BDecreases
  3. CData is not sufficient to predict it
  4. DRemains unaffected

Correct answer

D. Remains unaffected

Step-by-step solution

This is a heterogeneous equilibrium. The equilibrium constant for it can be written as: K ⁡ c = CO 2 The concentration of CaCO 3 and CaO are assumed to be constant as they are present as solid. Hence, CaCO 3 has no effect on equilibrium concentration.

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