Q.

At 819°C and 1 atm, equilibrium is attained for the reaction, CaCO3(s)⇌CaO(s)+CO2(g) in a closed vessel.Initially ‘X’ moles of CaCO3 was present in the vessel. Equilibrium constant (Kc) for the reaction is

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Detailed Solution

Equilibrium constant Kc=CO2CaCO3solid=CaOsolid=1For   an   ideal  gas,  PV=nRT;nV=PRTnV=CO2CO2=PRTCO2=10.0821273×4CO2=122.4×4MKc=189.6M
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At 819°C and 1 atm, equilibrium is attained for the reaction, CaCO3(s)⇌CaO(s)+CO2(g) in a closed vessel.Initially ‘X’ moles of CaCO3 was present in the vessel. Equilibrium constant (Kc) for the reaction is