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A quantity of PCI 5 was heated in a 2 li...

A quantity of `PCI _5` was heated in a 2 litre vessel at 525 K . It dissociates as `PCI_5 (g) hArr PCI _3 (g) + CI_2 (g)` At equilibrium 0.2 mol each of `PCI_5 , PCl_3and Cl_2` is found in the reaction mixture. The equilibrium constant `K_c` for the reaction is -

A

0.2

B

0.5

C

0.1

D

0.05

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The correct Answer is:
C
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