For CaCO₃(s) ⇌ CaO(s) + CO₂(g), K_p =
- Acheck_circle
P_CO₂
- B
P_CO₂/(P_CaO·P_CaCO₃)
- C
P_CO₂·[CaCO₃]/[CaO]
- D
[CaO]/[CaCO₃]
Explanation
Pure solids do not appear in K; only gas pressures count → K_p = P_CO₂.
Representations of Equilibrium
AP Chemistry· difficulty 2/5
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