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Question

Given four reactions and their equilibrium constants.

N2O22NO,K1;12N2+12O2NO,K2;
2NON2+O2,K3;NO12N2+12O2,K4
Correct relation between K1,K2,K3 and K4 is:  
  1. (K4)2=K3
  2. K3×K2=1
     
  3. None of the above
  4. both a and b


Solution

The correct option is D both a and b
N2O22NO,K1;12N2+12O2NO,K2;
2NON2+O2,K3;NO12N2+12O2,K4

Reaction 3 is obtained by multiplying the reaction 4 with 2
Hence, (K4)2=K3
(a) is correct.

Reaction 3 is obtained by dividing reaction 2 by two and then reversing it Hence, K3×K2 = 1
(b) is true.

So both (a) and (b) are correct.

As (a) and (b) are already correct so (d) is ignored.

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