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Phosphorus pentachloride dissociates as ...

Phosphorus pentachloride dissociates as follows, ina closed reaction vessel, `PC1_(5(g))hArrPC1_(3(g)) + C1_(2(g))` If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of `PC1_(5)` is x, the partial pressure of `PC1_(3)` will be:

A

` ((x)/(x + 1))P`

B

`((2 x)/(1 - x))P`

C

`((x)/(x - 1))P`

D

`((x)/( 1 - x)) P`

Text Solution

Verified by Experts

The correct Answer is:
A
`{:(PCl_(5(g))hArrPCl_(3(g)) + Cl_(2(g))),(" 1 0 0"),(" (1-x) x x"):}`
Total pressure = 1 - x + x + x = 1 + x
`:.` Partial pressure of `PCl_(3) = ((x)/( x +1))P`
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