(Solved): At 298 K, the reaction PCl5(g) PCl3(g) + Cl2(g) has KP = 3.01 107. What is the fraction di ...

At 298 K, the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g) has KP = 3.01 × 10−7. What is the fraction dissociated, n0 , at 450. K if ∆????° = 87.9 kJ·mol−1? Assume only pure PCl5 exists at the start of the reaction and that the total pressure is 1.00 bar.