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If dissociation for reaction, PC1(5)hArr...

If dissociation for reaction, `PC1_(5)hArrPC1_(3) + C1_(2)` is `20%` at 1 atm pressure. Calculate `K_(c)`.

A

`0.04`

B

`0.05`

C

`0.07`

D

`0.06`

Text Solution

Verified by Experts

The correct Answer is:
B
`K_(c)=([PC1_(3)][C1_(2)])/([PC1_(5)])=([(20)/(100)]xx[(20)/(100)])/([(80)/(100)])`
`= (0.2xx0.2)/(0.8)=(0.04)/(0.8)=0.05`
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