Equilibrium Question 566

Question: 2NO22NO+O2;K=1.6×1012

NO+12O2NO2K= [CPMT 1996]

Options:

A) K=1K2

B) K=1K

C) K=1K

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

2NO22NO+O2 –(i) K=1.6×1012

NO+12O2NO2 –(ii) Reaction (ii) is half of reaction (i) K=[NO]2[O2][NO2]2 –(i) K=[NO2][NO][O2]1/2; –(ii) On multiplying (i) and (ii) K×K=[NO]2[O2][NO2]2×[NO2][NO][O2]1/2;

=[NO][O2]1/2;[NO2]=1K

K×K=1K ; K=1K2 ; K=1K .



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