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JEE Main Chemistry Class 11 Equilibrium Questions Part 1 Questions
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© examsnet.com
Question : 35
Total: 100
At a certain temperature, only
50
%
H
I
is dissociated into
H
2
and
I
2
at equilibrium. The equilibrium constant is:
[Online April 9, 2014]
1.0
3.0
0.5
0.25
Validate
Solution:
2
H
I
⇌
H
2
+
I
2
At eqm.
c-cα
c
α
2
c
α
2
Now,
K
c
=
(
c
α
2
)
(
c
α
2
)
(
c
−
c
α
)
2
K
C
=
α
4
(
1
−
α
)
2
;
K
c
=
0.5
4
(
1
−
0.5
)
2
K
0
=
0.25
© examsnet.com
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