The two common chlorides of phosphorus, PCl₃ and PCl₅, both important in the production of other phosphorus compounds, coexist in equilibrium through the reaction

At 250 °C, an equilibrium mixture in a 2.50 L flask contains 0.105 g PCl₅, 0.220 g PCl₃, and 2.12 g Cl₂. What are the values of 

(a) K_c and 

(b) K_p for this reaction at 250 °C ? 

For (b), use partial pressures in atmospheres.

Transcribed Image Text:

PC13(g) + Cl₂(g) → PC15(g)