Lexan is a plastic used to make compact discs, eyeglass lenses, and bullet-proof glass. One of the compounds used to make Lexan is phosgene (COCl2), an extremely poisonous gas. Phosgene decomposes by the following reaction for which Kp = 6.8 ✕ 10-9 at 100°C. COCl2(g) equilibrium reaction arrow CO(g) + Cl2(g) If pure phosgene at an initial pressure of 2.0 atm decomposes, calculate the equilibrium pressures of all species.

Explanation:

Hello,

In this case, since the undergoing chemical reaction is:

Thus, if we introduce the changing pressure, , the law of mass action becomes:

Now, by taking the given value of Kp we solve for x as follows:

therefore, the result is 1.41 atm so the equilibrium pressures turn out:

Best regards.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.