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Byju's Answer
Standard VII
Physics
Symbols of Electric Components
What does ext...
Question
What does external potential actually do to stop the current in an electrochemical cell or to reverse it's direction ?
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Q.
Define electrochemical cell. What happens if external potential applied becomes greater than
E
c
e
l
l
of electrochemical cell?
Q.
In this electrochemical cell the direction of current is
.
Q.
A reversible galvanic cell is connected to an external battery. If the electric potential of the battery is less than the electric potential of the galvanic cell, then the current:
Q.
State True or False.
In an electrochemical cell, in the inner circuit current is carried by ions and in the external circuit, current of electrons flows through the metal conductors.
Q.
(a) The conductivity of 0.001
m
o
l
L
−
1
solution of
C
H
3
C
O
O
H
is
3.905
×
10
−
5
S
c
m
−
1
.
Calculate its molar conductivity and degree of dissociation
α
.
Given
λ
∘
(
H
+
)
=
349.6
S
c
m
2
m
o
l
−
1
and
λ
∘
(
C
H
3
C
O
O
−
)
=
40.9
S
c
m
2
m
o
l
−
1
.
(b) Define electrochemical cell. What happens if external potential applied becomes greater than
E
∘
c
e
l
l
of electrochemical cell?
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