A+B⇌C+D If initially the concentration of A and B are both equal but at equilibrium concentration of D will be twice of that of A then what will be the equilibrium constant of reaction ?
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a
49
b
94
c
19
d
4
answer is D.
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Detailed Solution
A + B ⇌ C + D t=0; a a 0 0 teq.; (a-x) (a-x) x x ∵ [D]=2[A] ⇒ x=2(a-x) ⇒ x=2a/3 Now kc=[C][D][A][B]=2a/3×2a/3a/3×a/3=4