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NCERT Class XI Chemistry Equilibrium Solutions

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Question : 2
Total: 73
What is Kc for the following equilibrium when the equilibrium concentration of each substance is : [SO2] = 0.60 M, [O2] = 0.82 M and [SO3] = 1.90 M?
2O2(g)+2(g) ⇌ 2SO3(g)
Solution:  
2O2(g)+2(g) ⇌ 2SO3(g)
Applying law of chemical equilibrium,
KC =
[SO3]2
[SO2]2[O2]
 =
(1.9)2
(0.6)2(0.82)
 = 12.229 Lmol−1
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