Vapour density of PCl(5) is 104.16 but w...

Vapour density of `PCl_(5)` is 104.16 but when heated at `230^(@) C` its vapour density is reduced to 62 . The degree of dissociation of `PCl_(5)` at this temperature will be

`6.8%`

0.68

0.46

0.6

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