Is the
(a) Li* (b) Na
(c) Mg
213. Consider the following equation for a cell
reaction
A+B=C+D E = x volt, K = K,
2A + 2B = 2C + 2D E = y volt, Kg =K
then
(a) x = y,K, -
1
K
(e) x = y,K, EK,
(b) x = y, k, = K
(d) x = 2y, k, = 2K
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11th
>Chemistry
>Equilibrium
>Law of Chemical Equilibrium and Equilibrium Constant
>Consider the following equa...
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Consider the following equations for a cell reaction, then:
A+B⇌C+D, E
o
=x volt, K
eq
=K
1
2A+2B⇌2C+2D, E
o
=y volt, K
eq
=K
2
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Correct option is
C
x=y,K
1
2
=K
2
The given reaction are :-
A+B⇌C+D;E
0
=xv
K
eq
=K
1
=
[A][B]
[C][D]
→(I)
2A+2B⇌2C+2D;E
0
=yv
⇒K
eq
=K
2
=
[A]
2
[B]
2
[C]
2
[D]
2
K
2
=K
1
2
Now, EMF of the cell having a particular reaction does not change on multiplying or dividing the balanced chemical reaction with a constant.
So, x=y, K
1
2
=K
2
.