For the reaction system, 2SO2(g) + O2(g) <--> 2SO3(g), the equilibrium concentrations are: SO3: 0.120M SO2: 0.860M O2: 0.330M Calculate the value of Kc for this reaction.

0.0590 M⁻¹

Explanation:

Kc represents the equilibrium constant. It is given as;

Kc = [products] / [reactants]

For the reaction; 2SO2(g) + O2(g) <--> 2SO3

Products = SO3

Reactants = SO2 and O2

Kc is given as;

Kc = [SO3]² / [SO2]² [O2]

Kc = 0.120² / (0.860)² (0.330)

Kc = 0.0144 / 0.2440 = 0.0590 M⁻¹

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