A sample of COCl2 is placed in a closed 15.0-liter vessel at 25°C, and it exerts a pressure of 4.65 atm before decomposition begins. What will be the total pressure at equilibrium?

A sample of COCl2 is placed in a closed 15.0-liter vessel at 25°C, and it exerts a pressure of 4.65 atm before decomposition begins. What will be the total pressure at equilibrium?

For the reaction below, Kp = 6.70 × 10−3 at 25°C.
COCl2(g) CO(g) + Cl2(g)

A sample of COCl2 is placed in a closed 15.0-liter vessel at 25°C, and it exerts a pressure of 4.65 atm before decomposition begins. What will be the total pressure at equilibrium?



a. 1.68 atm
b. 3.80 atm
c. 5.03 atm
d. 4.65 atm
e. 4.83 atm


Answer: e. 4.83 atm


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