In the system CaCO3(s)⇌CaO(s)+CO2(g), doubling the mass of CaO will cause the equilibrium concentration of CO2 to

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become half of its initial value

remain unchanged

become twice its initial value

a value which cannot be predicted unless Kc is known

answer is B.

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Detailed Solution

Keq=pCO2 It is independent of mass of CaO.

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