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in Physical and Chemical Equilibrium by (45.7k points)
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The value of KC for the reaction 2A ⇌ B + C is 2 x 10-3. At a given time, the composition of reaction mixture is [A] [B] [C] = 3 x 10-4 M. In which direction the reaction will proceed?

1 Answer

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Best answer

For the reaction, the reaction quotient Q is given by 

QC = ([B] [C]) / [A]2 

as [A] = [B] = [C] = 3 x 10-4

QC = (3 x 10-4)(3 x 10-4) / (3 x 10-4)2 = 1

as QC > KC so, the reaction will proceed in the reverse direction.

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