By how much had the concentrations changed when the reaction reached equilibrium? The concentration of PCI3 has decreased by i M The concentration of Cl2 has decreased by i M The concentration of PCI5 has increased by i M What were the equilibrium concentrations? The equilibrium concentration of PCI3 = i M The equilibrium concentration of Cl2 = i M The equilibrium concentration of PCI5 = i M %3D What is the value of K. for this reaction at this temperature? Kc = i

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