Consider the decomposition of barium carbonate.
BaCO₃(S) ⇌ BaO(s) + CO₂(g)
Substance ∆H° (kJ/mol) S° (J/(mol.K))
BaCO₃(S) - 1216.3 112.1
BaO(s) - 553.5 70.42
CO₂(g) - 393.5 213.6
Calculate the equilibrium pressure CO₂ at 298 K.