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Gases are present intwo containers at 3...

Gases are present intwo containers at 300 K separated by a narrow tube of negligible volume having valve in between. On opening the valve the reaction `A_(2)(g) + B_(2)(g) hArr 2AB(g)` attains equilibrium at 300 K. If `K_(c) = 4` at 300 K, the concentration of AB at equilibirum is :

A

1.33 M

B

2.66 M

C

1.66 M

D

0.66 M

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The correct Answer is:
D
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