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Equilibrium PYQ series

The equilibrium constant for the reaction:

\[ \text{CaCO}_{3(\text{s})} \rightleftharpoons \text{CaO}_{(\text{s})} + \text{CO}_{2(\text{g})} \]

Which of the following statements are correct?

The correct options are: (A), (B), and (D).

Explanation: For the equilibrium \[ \text{CaCO}_{3(\text{s})} \rightleftharpoons \text{CaO}_{(\text{s})} + \text{CO}_{2(\text{g})}, \] the equilibrium constant \(K\) is independent of the initial amount of \(\text{CaCO}_{3}\). At a given temperature, \(K\) is independent of the pressure of \(\text{CO}_{2}\), and \(\Delta H\) is independent of the catalyst but depends on temperature. Hence, options (A), (B), and (D) are correct.

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