Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to the reaction: PCl₃ (g) + Cl₂ (g) → PCl₅ (g)
An equilibrium mixture at 450 K contains
P_PCl₃ = 0.224 atm,
P_Cl₂ = 0.284 atm, and
P_PCl₅ = 4.24 atm. What is the value of K_p at this temperature?

Question

Quizplus · Accepted Answer

The equilibrium constant, Kp, is given by the expression:Kp = (P_PCl₅) / (P_PCl₃ * P_Cl₂)Substituting the given equilibrium partial pressures into this expression, we get:Kp = (4.24 atm) / (0.224 atm * 0.284 atm) = 66.7Therefore, the value of Kp at 450 K is 66.7.

Phosphorous Trichloride and Phosphorous Pentachloride Equilibrate in the Presence of Molecular