At certain temperature compound AB2(g) dissociates according to the reaction:
2AB2(g)⇌2AB(g)+B2(g)
With the degree of dissociation α, which is small compared with unity. The expression of Kp, in terms of α and initial pressure P is:
Pα32
Pα23
Pα33
Pα22
A
Pα33
B
Pα22
C
Pα32
D
Pα23
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Solution
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The equilibrium reaction is as shown below:
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