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Byju's Answer
Standard XII
Chemistry
EMF
The emf of th...
Question
The emf of the following cell at
25
o
C
.
P
t
,
H
2
P
1
=
2
a
t
m
,
|
H
C
l
|
P
t
,
H
2
P
2
=
10
a
t
m
[
E
o
c
e
l
l
=
0.0
v
;
2.303
R
T
F
=
0.0591
]
A
0.0206
V
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B
−
0.0206
V
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C
0.206
V
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D
−
0.206
V
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Solution
The correct option is
D
0.0206
V
The
e
m
f
of the concentration cell is
E
=
0.0591
2
l
o
g
P
a
n
o
d
e
P
c
a
t
h
o
d
e
E
=
0.0591
2
l
o
g
(
10
2
)
E
=
0.0591
2
l
o
g
(
5
)
=
0.0206
V
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1
Similar questions
Q.
P
t
|
H
2
(
p
1
)
∥
H
+
(
1
M
)
∥
H
+
(
1
M
)
∥
H
2
(
p
2
)
|
P
t
(where
p
1
and
p
2
are pressure) cell reaction will be spontaneous if:
Q.
P
t
|
H
2
(
p
1
)
|
|
H
+
(
1
M
)
|
|
H
+
(
1
M
)
|
|
H
2
(
p
2
)
|
P
t
(where
p
1
and
p
2
are pressure) cell reaction will be spontaneous if:
Q.
EMF of the following cell is
0.634
v
o
l
t
at
298
K
P
t
|
H
2
(
1
a
t
m
)
|
H
+
(
a
q
)
|
|
H
g
2
+
2
(
a
q
.
1
N
)
|
H
g
(
l
)
. The pH of anode compartment is :
(Given,
E
o
H
g
2
+
2
|
H
g
=
0.28
and
2.303
R
T
F
=
0.059
)
Q.
P
t
|
C
l
2
(
P
1
atm) |
H
C
l
(
0.1
M) |
C
l
2
(
P
2
atm) |
P
t
, cell reaction will be spontaneous if:
Q.
Calculate the pH of following solutions:
Pt,
H
2
|
H
C
l
,
E
=
0.25
V
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