Problem

Consider the following reaction: (9.3, 9.4, 9.5)PCl5(g) ⇄ PCl3(g) + Cl2(g)a. Write the equ...

Consider the following reaction: (9.3, 9.4, 9.5)

PCl5(g) ⇄ PCl3(g) + Cl2(g)

a. Write the equilibrium constant expression for the reaction.


b. Initially, 0.60 mole of PCl5 is placed in a 1.00 L flask. At equilibrium, there is 0.16 mole of PCl3 in the flask. What are the equilibrium concentrations of the PCl5 and Cl2?


c. What is the value of the equilibrium constant, Kc , for the reaction?


d. If 0.20 mole of Cl2 is added to the equilibrium mixture, will the concentration of PCl5 increase or decrease?

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