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XY(2) dissociates XY(2)(g) hArr XY(g)+Y(...

`XY_(2)` dissociates `XY_(2)(g) hArr XY(g)+Y(g)`. When the initial pressure of `XY_(2)` is `600` mm Hg, the total equilibrium pressure is `800` mm Hg. Calculate K for the reaction Assuming that the volume of the system remains unchanged.

A

50

B

`100.0`

C

166.6

D

`400.0`

Text Solution

Verified by Experts

The correct Answer is:
B
`XY_2 hArr XY +Y`
Initial pressure of ` XY_2 600` mmHg
According to equation,
`XY_2 hArr XY +Y`
`{:("Initial", 600, 0 ,0),("At equilibrium", 600 – P, P, P):}`
Total = 600 + P = 800
P = 200
`K= (200 xx 200)/400 = 100.0`
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