A mixture of 0.5830 M CO and 0.3080 M Cl2 is enclosed in a vessel and heated to 1000 K CO(g)+Cl2(g)↽ ⇀COCl2(g)𝐾c=255.0 at 1000 K Calculate the equilibrium concentration of each gas at 1000 K

Answer 1

CO(g) + Cl₂(g) <===> COCl₂(g)

Kc = 255 = [COCl₂] / [CO][Cl₂]

Set up an ICE table

CO(g) + Cl₂(g) <===> COCl₂(g)

0.5830....0.3080............0...........Initial

-x...............-x...............+x............Change

0.5830-x...0.3080+x.....x............Equilibrium

Plugging values into equilibrium expression:

255 = x / (0.5830-x)(0.3080-x)

Solve for x and then plug that value into the Equilibrium line of the ICE table to find equilibrium concentrations of each gas.