The Equilibrium for the Reaction for the Decomposition of PCl₅

question 61

Multiple Choice

The equilibrium for the reaction for the decomposition of PCl₅ to chlorine and PCl₃ is 0.042. PCl₅(g) ⇌ PCl₃(g) + Cl₂(g)
If the equilibrium concentrations are [PCl₃] = 0.010 M, [Cl₂] = 0.10 M, what is the value of [PCl₅]?

• A) 0.010 M
• B) 0.0020 M
• C) 0.042 M
• D) 0.024 M
• E) 0.0010 M

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