Q.

For the reaction , the degree of dissociation at equilibrium is 0.2 at 1 atm. Then Kp will be

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a

12

b

14

c

16

d

18

answer is C.

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Detailed Solution

Total moles at equilibrium =0.8 + 0.4 =1.2Partial pressure of N2O4 = χN2O4×Ptotal=0.81.2=23Partial  prerssure of NO2 = χNO2×Ptotal= 0.41.2=13Kp = PNO22PN2O4=13×1323=16atm
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