1.

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

Answer»

`Deltah` is dependent on T
K is independent of the initial amount of `CaCO_(3)`
K is dependent on the pressure of `CO_(20` at a givn T
`DeltaH` is independent of the catalyst, if any

Solution :(a) `DeltaH_(2)-DeltaH_(1)=C_(p(rxn))(T_(2)-T_(1))andC_(p)` depends on temperatue. Hence enthlpy also depends on temperature.
(b) `CaCO_(3(s))CaO_((s))+CO_(2(g))K_(P)=(P_(CO_(2)))_("at equlibrium m")` for a GIVEN reaction, `K_(eq.)` depends only on temperature.
(C)`K_(eq.)` depends only on temperature.
(d) Enthalpy of reaction is independent of the catalyst. Catalyst generally CHANGES activation ENERGY.


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