For the Reaction PCl₃(g) + Cl₂(g) PCl₅(g) at a Particular

question 107

Multiple Choice

For the reaction PCl₃(g) + Cl₂(g) PCl₅(g) at a particular temperature, K_c = 32.4. Suppose a system at that temperature is prepared with [PCl₅] = 0.50 M, [Cl₂] = 0.4 M, and [PCl₃] = 0.10 M. Which of the following is correct?

• A) The system will proceed in the direction of forming more PCl₅ and Cl₂ until equilibrium is reached.
• B) The system is at equilibrium.
• C) The system will proceed in the direction of forming more PCl₅ until equilibrium is reached.
• D) The system will proceed in the direction of forming more PCl₃ and Cl₂ until equilibrium is reached.
• E) The system will proceed in the direction of forming more PCl₃ and PCl₅ until equilibrium is reached.

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