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In the reaction AB(g) hArr A(g) + B(g) a...

In the reaction `AB(g) hArr A(g) + B(g)` at `30^(@)C, k_(p)` for the dissociation equilibrium is `2.56xx10^(-2) atm`. If the total pressure at equilibrium is 1 atm, then the percentage dissociation of AB is

A

0.87

B

0.13

C

0.435

D

`16%`

Text Solution

Verified by Experts

The correct Answer is:
D
`K_p =(alpha^2p)/(1-alpha^2)` or `alpha^2/(1-alpha)=2.56xx10^(-2)`
or `alpha^2 = 2.56xx10^(-2)`
`therefore alpha `=0.16 , % dissociation =16%
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