The Equilibrium Constant (K_p)for the Interconversion of PCl₅ and PCl₃

question 12

Multiple Choice

The equilibrium constant (K_p) for the interconversion of PCl₅ and PCl₃ is 0.0121: PCl₅ (g) PCl₃ (g) + Cl₂ (g)
A vessel is charged with PCl₅, giving an initial pressure of 0.123 atm. At equilibrium, the partial pressure of PCl₃ is __________ atm.

• A)0.0782
• B)0.0455
• C)0.0908
• D)0.0330
• E)0.123

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