Question

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For the following reaction, Kc = 255 at 1000 K. CO (g) + Cl2 (g) ?...

For the following reaction, Kc = 255 at 1000 K.
CO (g) + Cl2 (g) ? COCl2 (g)

A reaction mixture initially contains a COconcentration of 0.1490 M and a Cl2concentration of 0.177 M at 1000 K.

What is the equilibrium concentration of CO at 1000 K?

What is the equilibrium concentration of Cl2 at 1000 K?

What is the equilibrium concentration of COCl2 at 1000 K?

Solutions

Expert Solution

CO   + Cl2    ---------------------> COCl2

0.149        0.177                               0               initial

0.149-x      0.177-x                             x              at equilibrium

Kc= [COCl2 ]/[CO][ Cl2]

  255   =x/(0.149-x)( 0.177-x )

x= 0.195 and x=0.1347 so valid x value is x=0.1347

equilibrium concentration of CO =0.149-x    =0.0143                        

equilibrium concentration of Cl2 = 0.177-x     =0.0423

equilibrium concentration of COCl2= x           =0.1347

queen_honey_blossom answered 3 hours ago
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