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Byju's Answer
Standard XII
Chemistry
Equilibrium Constant from Nernst Equation
Calculate the...
Question
Calculate the equailibrium constant for the reaction:
C
u
(
s
)
+
2
A
g
+
(
a
q
)
⟶
C
u
2
+
(
a
q
)
+
2
A
g
(
s
)
Given that :
E
0
A
g
+
/
A
g
=
0.80
V
,
E
0
C
u
2
+
/
C
u
=
0.34
V
.
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Solution
E
o
A
g
+
/
A
g
=
0.80
V
,
E
o
C
u
2
+
/
C
u
=
0.34
V
E
o
cell
=
E
o
reduction
+
E
o
oxidation
=
(
0.80
−
0.34
)
V
=
0.46
V
E
o
cell
=
(
0.0591
n
)
log
K
0.46
×
2
0.0591
=
log
K
log
K
=
15.5
K
=
10
15.5
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0
Similar questions
Q.
What is the
Δ
G
∘
for the following reaction?
C
u
2
+
(
a
q
)
+
2
A
g
(
s
)
→
C
u
(
s
)
+
2
A
g
+
(
a
q
)
Given:
E
0
C
u
2
+
/
C
u
=
0.34
V
,
E
0
A
g
/
A
g
+
=
−
0.8
V
Q.
Calculate
Δ
G
for the following cell reaction.
Z
n
(
s
)
+
A
g
2
O
(
s
)
+
H
2
O
(
l
)
→
Z
n
2
+
(
a
q
)
+
2
A
g
(
s
)
+
2
O
H
−
(
a
q
)
E
0
A
g
+
/
A
g
=
+
0.80
V
and
E
0
Z
n
+
2
/
Z
n
=
−
0.76
V
Q.
Given,
E
∘
A
g
+
/
A
g
=
+
0.80
V
,
E
∘
C
o
2
+
/
C
o
=
−
0.28
V
,
E
∘
C
u
2
+
/
C
u
=
+
0.34
V
,
E
∘
Z
n
2
+
/
Z
n
=
−
0.76
V
,
Which metal will corrode to greater extent?
Q.
Given
E
0
A
g
+
/
A
g
=
0.80
V
,
E
0
M
g
2
+
/
M
g
=
−
2.372
V
,
E
0
C
u
2
+
/
C
u
=
0.34
V
,
E
0
H
g
2
+
/
H
g
=
0.79
V
Which of the following statement(s) is/are correct?
Q.
Given
E
0
A
g
+
/
A
g
= +0.80 V ;
E
0
C
u
2
+
/
C
u
= +0.34 V ;
E
0
F
e
3
+
+
/
F
e
2
+
= +0.76V ;
E
0
C
e
4
+
+
/
C
e
3
+
= + 1.60 V
Which of the following statements is not correct ?
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