For the reaction of carbon with carbon dioxide to make carbon monoxide, the reaction is as follows. Write the equilibrium constant expression for the Kc. C(s) + CO?(g) ? 2CO(g)

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The equilibrium constant expression would be Kc = $\frac { \left[ \mathrm { CO } ^ { 2 } \right. } { \left[ \mathrm { CO } _ { 2 } \right] }$. This is because in the balanced chemical equation, the coefficients of CO and CO2 are 2 and 1, respectively, which means that the concentrations of CO and CO2 must be squared and not multiplied by any other numbers. The concentration of C is not included in the equilibrium constant expression because it is a solid and therefore does not have a concentration that changes during the reaction.

For the Reaction of Carbon with Carbon Dioxide to Make [CO][CO2]\frac { [ \mathrm { CO } ] } { \left[ \mathrm { CO } _ { 2 } \right] }[CO2​][CO]​

For the Reaction of Carbon with Carbon Dioxide to Make $\frac { [ \mathrm { CO } ] } { \left[ \mathrm { CO } _ { 2 } \right] }$