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Ata certain temperature, the degree of d...

Ata certain temperature, the degree of dissociationof `PCI_(3)` was found to be 0.25 under a total pressure of 15 atm. The value of `K_(p)` for the dissociation of `PCl_(5)` is

A

1

B

0.25

C

0.5

D

0.75

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