The equilibrium constant (K_p)for the interconversion of PCl₅ and PCl₃ is 0.0121.A vessel is charged with PCl₅ giving an initial pressure of 0.123 atm and yields PCl₃ and Cl₂.At equilibrium,the partial pressure of PCl₃ is ________ atm.

Question

Quizplus · Accepted Answer

The equilibrium expression is Kp = (P_PCl3 * P_Cl2) / P_PCl5. Let x be the change in pressure at equilibrium. Then, P_PCl3 = P_Cl2 = x and P_PCl5 = 0.123 - x. Substituting into the equilibrium expression: 0.0121 = (x * x) / (0.123 - x). Solving for x gives x = 0.0330 atm.

The Equilibrium Constant (Kp)for the Interconversion of PCl5 and PCl3

The Equilibrium Constant (K_p)for the Interconversion of PCl₅ and PCl₃