Question

Hello!

please help me!
The nerve gas phosgene decomposes according to COC12(g) - CO(g) + Cl2(g), K = 0.32 at 1000 K. If
the initial concentration of phosgene is 0.015 M. what are the equilibrium concentrations of all gases?

Answer 1

`[CO]=[Cl_2]=0.01436M`

`[COCl_2]=0.00064M`

Step-by-step explanation:

Hello there!

In this case, according to the given chemical reaction at equilibrium, we can set up the equilibrium expression as follows:

`K=([CO][Cl_2])/([COCl_2])`

Which can be written in terms of x, according to the ICE table:

`0.32=(x^2)/(0.015M-x)`

Thus, we solve for x to obtain that it has a value of 0.01436 M and therefore, the concentrations at equilibrium turn out to be:

`[CO]=[Cl_2]=0.01436M`

`[COCl_2]=0.015M-0.01436M=0.00064M`

Regards!