Calcium carbonate can dissociate according to the following reaction: CaCO3(s) CaO(s) + CO₂(g) Determine the equilibrium pressure for a closed system with pure CaCO3 in vacuum at 1000°K. Assume that the two solid phases are completely immiscible. Ag £1000 £1000 (kJ/mol) CaCO3(s) - 951.25 CaO(s) - 531.09 CO₂(g) - 395.81

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