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chapter 18 - electrochem
18.3 relationships between E, G, and K
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Cards (7)
Voltage
=
Joules
/
Coulomb
Coulomb
measures the
amount
of
charge
96,485
Coulombs =
1
mole e- =
1
Faraday
(F)
G
=
G =
G
=
−
n
F
E
-nFE
−
n
FE
E
=
E =
E
=
(
R
T
/
n
F
)
l
n
K
(RT/nF)lnK
(
RT
/
n
F
)
l
n
K
E
=
E =
E
=
(
0.0257
/
n
)
l
n
K
(0.0257/n)lnK
(
0.0257/
n
)
l
n
K
spontaneous:
-
G
K >
1
+
E
nonspontaneous:
+
G
K <
1
-
E