An equilibrium mixture of SO2,O2,and SO3 at high temperature contains the gases at the following concentrations: SO2 =3.17*10-3 mol/L,O2=4.83*10-3 mol/L and SO3=4.50*10-3 mol/L.Calcualte the equilibrium constant,Kc,for the reaction.   2SO2(g) + O2(g)=2SO3(g) Kc=

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