Write the equilibrium equation.
Write the Keq expression.
Plug in the values given for concns at equilibrium and compare with Keq of 12.5 which is given. You may logically conclude that the system is or is not at equilibrium AND whether it is too much on the reactant side OR too much to the product side. Show your work if this is not clear or to check your answers.
Given the equilibrium system PCl5(g) <---> PCl3(g) + Cl2(g)
K = 12.5 at 60 degrees Celsius. A 1.0-L reaction vessel is analyzed and found to contain 3.2 mol Cl2(g), 1.5 mol PCL3(g) and 3.0 mol PCl5(g). Show that the reaction mixture has not yet reached equilibrium
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