Question

write expression for KP and KC for the decomposition reaction of calcium carbonate​

Answer 1

The expression for Kp and Kc for decomposition of calcium carbonate is as follow:--

●reaction of decomposition of calcium carbonate is:-calcium carbonate decomposes to give calcium oxide and oxygen gas .

CaCO3(s)-------->CaO(s)+O2(g)

●we know that at equilibrium the equilibrium constant depend on concentration of reactants and products but the state must be gaseous.

●For solids and liquid their concentration is taken to be 1 .

●Kc=[CaO][O2]/[CaCO3]

So Kc=[O2]

●Now for Kp here also Kp depends on pressure of gaseous reactants and products and for solids pressure is unity.

●Kp=[O2]P where p is pressure of gas.

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