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The dissociation equilibrium of a gas AB2 can be represented as

The degree of dissociation is 'x' and is small compared to 1. The expression relating the degree of dissociation (x) with equilibrium constant Kp and total pressure p is

(a) (2kp/p)

(b) (2Kp/p)1/3

(c) (2Kp/p)1/2

(d) (Kp/p)

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