, -
Electrochemistry
=>
Electrochemistry chemical
the is branch of chemistry which establishes a
relationship between and electrical It deals with
energy energy
.
study of chemical
chemical
out
current
chemmeCha
called
whchigwen
electrochemical
changes
are .
*
Electrolytic
~
Fintance
·
Conductors
passage of electricity through
=> All allow the
those substance which them
called
may
are conductory.
↓
Felic Ends
mobility of Metal
=> conductance in metal is due to electrons
may
.
conduct in solid state molten state in dissolved state
electricity
,
or
even . With
vise in temperature magnitude of
leade
metallic conductance decreased booz
metal
higher temperature
to vibration Kernels in the which
among
vexists the movement of electrons .
2 ·
and (eye)
Entolytic
-
Conductance is due to
movement of towards
oppositely charged
=>
ins
electrodes .
It causes
transfer of & hence
matter decomposition .
Substance aqueous polution
passage of
*
which allow the electric current
and
chemically decomposed termed
Electrolyte
are are .
* The substance solution do not conduct electric amount
whose aquous
called
are &
on-electrolyte Ego-Gluce
.
almost completely ionized
strong electrolytes
.
Electrolytes
*
which are are
for egit Nad ,
KU
NaOH ,
HU ,
etc .
completely ionized
do not in solution
Electrolytes which
* are weak
electrolytes for egit CHICOOH HWz MzBOs
· , , ,
HCN etc .
,*
finer offering elical utivity of Krolyte Entre
.
↑
Internic face of
tion if
Larger
the solute-solute interaction ,
hower
of lower
the extent dissociation
conductivity
.
,
will be
the
satio figerthepuevent interdians highe
l e
i ,
timpoxity of Ament interaction larger
the colvent-solvent
it
Larger
will
iij ,
viscosity lower is the conductivity of electrolyte
be ,
.
inmeration it
Higher
the concentration of the solution ,
lesser in the
conduction.
"Thepar it
Electrolytic conductance increases with rise in
temperature
*
A Init The
current (1) carried conductor (or solux)
by electrolytic
a
directly proportional potential
is to the
difference (v) blu the two end
o conductor ( or
electrode)
Y I VERI
-
> Resistance
Zaidevance
↑
provided by the medium in the
flow of
current is called Resistance ·
R =
X
I
(unit =
&(ohm) or
Volt/ampere)
Resistance of conductor is
directly proportional
to its
length (e)
·
a
and
inversely proportional to its area
of cross-section (a)
↑< = R =
+ /
> Specific resistance or
resistivity
, ·
Pfic rectance
(Ritivity it
cross-sectional
Resistance offered
by
a
conductor of unit
length
(unit-1
and unit
area - - Ray = = M *
E = R cm)
law also applicable
ohm's in to
electrolyticconductory .
·
The resistance
of a conductor can be
accurately measured
with the
help of Wheatstone
bridge .
= ·un
for measuring of
-
resistance solution
electrolytic
-
However , an
-
we
face two
problem· firstly passing : DC
through the
electrolyte changes
concentration of the solution and
the
secondly solution cannot connected
a be
,
to the like
bridge metallic a wire. The
first difficulty it resolved
by
using
As source
of power . The second
problem is resolved
by using a
specially designed Conductivity cell .
*
Conductanc & Conduc
unity
·
m
Stand (G)i- It
property of conductor /metallic
·
is the as well as
electrolytic) which facilitates the flow of electricity through it.
It is
equal to
reciprocal of resistance G =
4 lunit =
ohm" (2)
or
mho)
Magnitude of conductance depends mainly
:
on
in Number of ins
ii) Magnitude of charge on each in
Ionic
mobility (distance
travelled
by im per second under a
iii) an
potential gradient IV
per cm) .
-
Electrochemistry
=>
Electrochemistry chemical
the is branch of chemistry which establishes a
relationship between and electrical It deals with
energy energy
.
study of chemical
chemical
out
current
chemmeCha
called
whchigwen
electrochemical
changes
are .
*
Electrolytic
~
Fintance
·
Conductors
passage of electricity through
=> All allow the
those substance which them
called
may
are conductory.
↓
Felic Ends
mobility of Metal
=> conductance in metal is due to electrons
may
.
conduct in solid state molten state in dissolved state
electricity
,
or
even . With
vise in temperature magnitude of
leade
metallic conductance decreased booz
metal
higher temperature
to vibration Kernels in the which
among
vexists the movement of electrons .
2 ·
and (eye)
Entolytic
-
Conductance is due to
movement of towards
oppositely charged
=>
ins
electrodes .
It causes
transfer of & hence
matter decomposition .
Substance aqueous polution
passage of
*
which allow the electric current
and
chemically decomposed termed
Electrolyte
are are .
* The substance solution do not conduct electric amount
whose aquous
called
are &
on-electrolyte Ego-Gluce
.
almost completely ionized
strong electrolytes
.
Electrolytes
*
which are are
for egit Nad ,
KU
NaOH ,
HU ,
etc .
completely ionized
do not in solution
Electrolytes which
* are weak
electrolytes for egit CHICOOH HWz MzBOs
· , , ,
HCN etc .
,*
finer offering elical utivity of Krolyte Entre
.
↑
Internic face of
tion if
Larger
the solute-solute interaction ,
hower
of lower
the extent dissociation
conductivity
.
,
will be
the
satio figerthepuevent interdians highe
l e
i ,
timpoxity of Ament interaction larger
the colvent-solvent
it
Larger
will
iij ,
viscosity lower is the conductivity of electrolyte
be ,
.
inmeration it
Higher
the concentration of the solution ,
lesser in the
conduction.
"Thepar it
Electrolytic conductance increases with rise in
temperature
*
A Init The
current (1) carried conductor (or solux)
by electrolytic
a
directly proportional potential
is to the
difference (v) blu the two end
o conductor ( or
electrode)
Y I VERI
-
> Resistance
Zaidevance
↑
provided by the medium in the
flow of
current is called Resistance ·
R =
X
I
(unit =
&(ohm) or
Volt/ampere)
Resistance of conductor is
directly proportional
to its
length (e)
·
a
and
inversely proportional to its area
of cross-section (a)
↑< = R =
+ /
> Specific resistance or
resistivity
, ·
Pfic rectance
(Ritivity it
cross-sectional
Resistance offered
by
a
conductor of unit
length
(unit-1
and unit
area - - Ray = = M *
E = R cm)
law also applicable
ohm's in to
electrolyticconductory .
·
The resistance
of a conductor can be
accurately measured
with the
help of Wheatstone
bridge .
= ·un
for measuring of
-
resistance solution
electrolytic
-
However , an
-
we
face two
problem· firstly passing : DC
through the
electrolyte changes
concentration of the solution and
the
secondly solution cannot connected
a be
,
to the like
bridge metallic a wire. The
first difficulty it resolved
by
using
As source
of power . The second
problem is resolved
by using a
specially designed Conductivity cell .
*
Conductanc & Conduc
unity
·
m
Stand (G)i- It
property of conductor /metallic
·
is the as well as
electrolytic) which facilitates the flow of electricity through it.
It is
equal to
reciprocal of resistance G =
4 lunit =
ohm" (2)
or
mho)
Magnitude of conductance depends mainly
:
on
in Number of ins
ii) Magnitude of charge on each in
Ionic
mobility (distance
travelled
by im per second under a
iii) an
potential gradient IV
per cm) .
-
