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C2). Equilibsiom^ n^ Elec^ trochamial^ cell^ :
at equilibzivm Keq
- Dgunt^ types^ o^ Regunce^
electrode : ti) Metal-metal Con^ electrode
Anode : Zn cs) → Zn2e
. Cathode Zn2t+ 9e Ins)
LER)cathede^ ER)^ Anode^ $^ Ecell^ zo
Gtl) Ox- Redn^ electrod^ e^ :
- Pt lFe +2 | Fet
- Anode^ :^ fet?^ fet+e
(IS)
Eyiciency
o Cnal.^ cell^
(n)
(I3) Concentration^ cell^
: Both^ side^ should^ haue^
type o^ cell.
Themodynamie nalu^
an'e cell^ :
AS nF CEcen)
. Ial E 46500 XIxt
→Qnd laus i
laus o^ Electrolytes^
: fanodays 1st laus^ IN^
Itu tfma
Mass o, substoncet Deposited lebenated
WA
st) has^ lon^ electrode^
:
- Pt^ |Hag)|^ Hel^ ca) . No:
- Anode^ i^ Hag)→Ant^ +ae
- Cathode i an+&e H*
$ sxn^ wipontaneo^
Ws
Go) Met-Met^ in6ol.^ salt^ anion^ elec
. cathode: Agcl+^ e^ →^ Aga)^ tei
-ER:€'r -^ oro54^ log^ (eiJ
ushen Ecely^ >^ o^
4 C
AH nFEceu^
+nFT JCEceu)dT
CEq wt)s
4 electrocheni^ cal^
equi ualent^ o^ subs.^
deposi ted^.
|AH| >|nfEcenl-→^
exothemie |<]nfEcenl→ endothenmic
moles x^ n-ļactos^
It 46500
o} tanaday^ o.^
oy anm^ equiu.
CEq. wt) c
(s). Cunductometric Ttratlon :
vel
Ex HCI+NaoH Jacl+H
Vol HaoH adl.
eq þoint
WaoH add. ex i CHs Coo H + AaoH) CHgt6o + Ht+NaoHHo+CHscco Nat
AgNos
Cohd
Ttration o^ Agwos^ with^ kei^ :
(6) Electrocho^ mial^ cell;
-→ Anode xidh to kes place → athode → Regh takes place Cunent athode to anode → an ode to cathod e
.T
Anode e),
- Oxidation n cs) Zneyt ae Redoction e Cut+ &e Cucs)
@shubham_sharma
Coh
Cond
94
T
Gxa hel el
SA wth wB ec; Hcl+ NHyoH
EA. foint
e foint
Vol oy^ wH,oH^ ad.
.Jet Rrn Zns) + utaạ) Zn+ Cucs ) Ly cell 3xn [ Redox 6xnJ → Spontaneous tXn
Yol- kcl add
aweak base
e Point
Salt Bria
NKl
A N
+H
Cathode c+)
tRe haly cel
co. (^) Conductoss : (^) Sub (^) stance (^) which (^) atlow (^) passage electricity (^) theogh (^) te b (^) Metalic (^) conductoy : → (^) Wo
chamical chang
GLecTROCHEMI6TRY
→ no. oļ valence e"latotn
Elecbrolytic conductos chemicat
chang.
+ Temp [Mc U with t in Tem. ]
depends oh → Natue
(2). Conductance
l Resistan ce :"R 9
Am
→ (^) ioni (^) c (^) cond (^) N Conc".o (^) Lons → (^) Jalune (^) { (^) strong (^) elec• > wen (^) h (^) elecf -→ (^) Ionic (^) con (^) do (^) o (^) tonic
mobility
measunmen t:
A
Jconcn
b Molan conductiuity Am= Kx iovD
L Equivalent conductioity : Aeq :
•;Re blw E•c $ M•c :
Am
- Naniotion oļ Cond. p M-c
. Condvctiuily" always
+ for stong electralytes. :
4 Conductiui ty cell :
dec
C- m x
oith
M Kx \epo
wtth
=Àeo (^) X (^) n- (^) actos
decot tn
Concn :
!Ne Wormality lunit z [sem'eg]
fne↑. în onc.
(kz Conductiuity csm-)
M: Concn (semmol)
Am
conch,
u) Kohlrab sh lao or fndep. migration?
+ fos oeak electrolykes
ara ph :
Am (waci)mWat )+Am (er)
|m (n+)+ (n)
ell const.
Con cn
4 limiting Mol. Cond. a an elec trolyte n be sepaesen ted as the som
o indiuidual contribution anon s calon electralyte : r2 lim. M»c caton
. : im. M-t. a anio n
- z no. mol es o catio n. (^) no. c mcles c anion
