The degree of dissociation of SO3 is α at equilibrium pressure P. KP for SO3(g)⇌SO2(g)+12O2(g)
A
P2α22(1−α)3
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B
P12α3/2(1−α)(2+α)1/2
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C
P2α22(1−α)2
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D
None of these
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Solution
The correct option is BP12α3/2(1−α)(2+α)1/2 SO3(g)⇌SO2(g)+12O2(g) 1−−1−ααα2
Total no. of moles =1+α2 PSO3=(1−α)P1+α2PSO2=(αP)1+α2PO2=(α2)P1+α2 KP=PSO2×P12O2PSO3