JEE Main Chemistry question
In the reaction PCl₅ ⇌ PCl₃+Cl₂, the amounts of PCl₅, PCl₃ and Cl₂ at equilibrium are 2 mole each and the total pressure is 3 atm. The equilibrium constant Kp is:
Answer: (A)
Solution
Equal moles → each partial pressure = 1 atm. Kp=1×1/1=1.0 atm.