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

In the reaction, `AB(g) iff 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 ?

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