Two Moles of PCl₅ Are Placed in a 5

question 89

Multiple Choice

Two moles of PCl₅ are placed in a 5.0 L container. Dissociation takes place according to the equation PCl₅(g) ⇌ PCl₃(g) + Cl₂(g) . At equilibrium, 0.40 mol of Cl₂ are present. Calculate the equilibrium constant (K_c) for this reaction under the conditions of this experiment.

• A) 0.020
• B) 0.040
• C) 0.060
• D) 0.080
• E) None of the above

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