For the following reaction, Kc = 255 at 1000K CO(g) + Cl2(g) -> COCl2(g). A reac

Question

For the following reaction, Kc = 255 at 1000K CO(g) + Cl2(g) -> COCl2(g). A reaction mixture initially contains a CO concentration of 0.1550M and a Cl2 concentration of 0.176M at 1000K.. What is the equilibrium concentration of CO at 1000 ? What is the equilibrium concentration of Cl2 at 1000 ? What is the equilibrium concentration of COCl2 at 1000 ?

Explanation / Answer

Kc = [COCl2]/[CO][Cl2] => at equilibrim [CO] = 0.155-x, [Cl2] = 0.176-x and [COCl2] = x hence 255 = x/(0.155-x)(0.176-x), solving you get x as 0.14 hence [COCl2]= 0.14, [CO] = 0.015. [Cl2] = 0.036

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