The Equilibrium Constant,K_c,for the Reaction PCl₃(g)+ Cl₂(g) PCl₅(g)is 49

question 14

Multiple Choice

The equilibrium constant,K_c,for the reaction PCl₃(g) + Cl₂(g) PCl₅(g) is 49 at 230°C.
If 0.70 mol of PCl₃ is added to 0.70 mol of Cl₂ in a 1.00-L reaction vessel at 230°C,what is the concentration of PCl₃ when equilibrium has been established?

• A)0.049 M
• B)0.11 M
• C)0.35 M
• D)0.59 M
• E)0.83 M

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