poling process is used for

Answer

1

Explanation

`{:(,PCl_(3),+,Cl_(2),hArr,PCl_(5)),(t=0,n,,n,,0),(t=teq.,n-y,,n-y,,y):}`
`K_(p)=(y)/((n-y)(n-y))[(P)/(2n-y)]^(-1)" "rArr" "K_(p)=((2n-y)y)/((n-y)^(2)P)`