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Question

The value of kc for the reaction
2AB+C is 2 x 103
At a given time the composition of reaction mixture is [A] = [B] = [C] = 3 x 104 M. In which direction the reaction will proceed?

A
From left to right
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B
From right to left
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C
The reaction is at equilibrium
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D
First to the right than left
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Solution

The correct option is B From right to left
For this reaction
2AB+C
Kc=2×103[[A]=[B]=[C]]
Qc=[B][C][A]2
=[3×104][3×104[3×104]4
Qc=1
value of Kc=2×103
Since Qc>Kc the direction of reaction is bckwards
So ans B is correct

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