The dissociation equilibrium of a gas AB2 can be represented as:
2AB2(g)⇌2AB(g)+B2(g)
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:
(2Kp/p)1/3
(Kp/p)
(2Kp/p)1/2
(2Kp/p)
A
(2Kp/p)1/3
B
(2Kp/p)1/2
C
(Kp/p)
D
(2Kp/p)
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Solution
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Let P be the initial pressure of AB2 The equilibrium pressures of AB2,AB and B2 are P(1−x),xP and 0.5xP respectively.
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