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Standard XII
Physics
Thermodynamic Processes
If b1, b2, b3...
Question
If b1, b2, b3 are stepwise formation constants of MCl, MCl2, MCl3 and K is overall formation constant of MCl3, then in what ways can K be written?
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Q.
The equilibrium constants for the stepwise formation of
M
C
l
,
M
C
l
2
and
M
C
l
3
are
a
,
b
and
c
respectively. If the equilibrium constant of formation of
M
C
l
3
is K, which of the following is correct?
Q.
Decreasing ionic nature of
M
C
l
,
M
C
l
2
,
M
C
l
3
is :
M
C
l
>
M
C
l
2
>
M
C
l
3
. If true enter 1, else enter 0.
Q.
For the following equilibrium (omitting charges)
I.
M
+
C
l
⇋
M
C
l
,
K
e
q
=
β
1
II.
M
C
l
+
C
l
⇋
M
C
l
2
,
K
e
q
=
β
2
III.
M
C
l
+
C
l
⇋
M
C
l
3
,
K
e
q
=
β
3
IV.
M
+
3
C
l
⇋
M
C
l
3
,
K
e
q
=
K
Then relationship between
K
,
β
1
,
β
2
and
β
3
is:
Q.
Ethylenediamine displaces
H
2
O
in the complex
[
F
e
(
H
2
O
)
6
]
3
+
in three steps.
[
F
e
(
H
2
O
)
6
]
3
+
+
3
e
n
→
[
F
e
(
e
n
)
3
]
3
+
+
6
H
2
O
Stepwise formation constants are
l
o
g
K
1
=
4.34
l
o
g
K
2
=
3.31
l
o
g
K
3
=
2.05
Overall formation constant is
A
×
10
B
.
A
+
B
is ............
Q.
Ethylenediamine displaces
H
2
O
in the complex
[
F
e
(
H
2
O
)
6
]
3
+
in three steps.
[
F
e
(
H
2
O
)
6
]
3
+
+
3
e
n
→
[
F
e
(
e
n
)
3
]
3
+
+
6
H
2
O
Stepwise formation constants are:
log
K
1
=
4.34
log
K
2
=
3.31
log
K
3
=
2.05
Overall formation constant is
A
×
10
2
B
.
B
in question is:
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