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CGP EDU Academic Team
Published on: August 13, 2026
The thermal dissociation equilibrium of CaCO 3 (s) is studied under different conditions.
CaCO 3 (s) 
CaO(s) + CO 2 (g) For this equilibrium, the correct statement(s) is (are) :
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a,b,d)
Δ H 2 – Δ H 1 = C P (rxn) (T 2 – T 1 )
and C p depends on temperature. Hence enthalpy also depends on temperature.
CaCO 3(s) 
CaO (s) + CO 2(g) Kp = ( 
) at equilibrium For a given reaction. Keq. depends only on temperature.
Keq depends only on temperature.
Enthalpy of reaction is independent of the catalyst. Catalyst generaly changes activation energy.
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