1.

The thermal dissociation equilibrium of CaCO_(3) (s) is studied under different conditions CaCO_(3) (s) hArr CaO(s) + CO_(2) (g) For this equilibrium , the correct statement (s) is (are)

Answer»

`DELTAH ` is dependent on T
K is INDEPENDENT of the itial amount of `CaCO_(3)`
K is indepdent of the pressure of `CO_(2)` at a given T
`Delta H` is independent of the catalyst, ifany

SOLUTION :`Delta H` is dependent on . `Delta H` varieswith temperature according to Kirchoff's equation . Hence , (a) is correct .
Equilibrium constant of a reactiondependsonly on temperature and is independent of the amount of `CaCO_(3)` Hence, (B) is correct .
For the given reaction , ` K = p_(CO_(2))`at givenThus, K is independent of pressure . Hence , ( c) is incorrect.


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