Consider the decomposition equilibrium CaCO _3(s) CaO (s)+ CO _2(g)

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

Consider the decomposition equilibrium CaCO3(s)⇌CaO(s)+CO2(g).\text{CaCO}_3(s) \rightleftharpoons \text{CaO}(s)+\text{CO}_2(g). Which of the following species appears in the expression for KpK_p for this equilibrium? (a) CaCO3(s)\text{CaCO}_3(s) (b) CaCO3(s) and CaO(s)\text{CaCO}_3(s)\text{ and }\text{CaO}(s) (c) CO2(g)\text{CO}_2(g) (d) CaCO3(s), CaO(s), and CO2(g)\text{CaCO}_3(s),\ \text{CaO}(s),\ \text{and }\text{CO}_2(g)

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