For the Reaction: PCl₃(g) + Cl₂(g) ⇌ PCl₅(g) at 70

question 40

Multiple Choice

For the reaction: PCl₃(g) + Cl₂(g) ⇌ PCl₅(g) at 70.5°C, Kp = 1.05.
If one starts with 1.80 atm pressure of PCl₃(g) , 1.72 atm pressure of Cl₂(g) , and no PCl₅(g) , what is the partial pressure of PCl₅(g) at equilibrium?

• A) 0.827 atm
• B) 0.856 atm
• C) 0.818 atm
• D) 0.599 atm
• E) 0.080 atm

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