For the reaction PCl5 (g) ⇌ PCl3 (g) + Cl2 (g) Kc = 0.0454 at 261°C. If a vessel is filled with these gases such that the initial concentrations are [PCl5] = 0.2 M, [PCl3] = 0.20 M, and [Cl2] = 2.25 M, in which direction will a reaction occur and why?
A) toward products because Q = 0.56
B) toward reactants because Q = 1.8
C) toward products because Q = 2.8
D) toward reactants because Q = 0.0454
E) it is at equilibrium because Q = 1
Correct Answer:
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