1 . PCL5(g) = PCL3(g) +  PCL2(g)

• A. $Kp = \frac{P_{PC{I}_5}}{P_{PC{I}_3}.P_{PCl2}}$
• B. $Kp = \frac{P_{PC{I}_3}.P_{PC{l}_2}}{P_{PC{I}_5}}$
• C. $Kp = \frac{P_{PC{I}^3}.P_{PC{l}^2}}{P_{PC{I}^5}}$
• D. $Kp = \frac{P_{PC{I}^5}}{P_{PC{I}^3}.P_{PC{l}^2}}$

Answer: Option B

Explanation: