Manipulating K Expressions

Question

Consider the reaction:

C(s) + O₂(g)CO₂(g)

Write the equilibrium constant for this reaction in terms of the equilibrium constants, K_a and K_b, for reactions a and b below:

a.)	C(s) + 1/2 O2(g)		CO(g)		Ka
b.)	CO(g) + 1/2 O2(g)		CO2(g)		Kb

K =

Answer 1

Ka = [CO] / [O₂]^1/2

Kb = [CO₂] / [CO][O₂]^1/2

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C(s) + O₂(g) <==> CO₂(g)

K = KaKb