E_-_102_F11_Notes

10v spontaneousdirection cuszn2znscu2 ecell110v

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Unformatted text preview: teries:
Electricity
from
Chemical
Reactions
 Leclanché
(Dry)
Cell

 [see
Petrucci
et
al.,
Figure
20.14]
 • Max
voltage
1.55V
 • Some
problems:

produces
ammonia
(NH3)
under
high
draw
conditions,
Zn
dissolves
 under
acidic
conditions
 • Lead
to
creation
of
alkaline
battery
 ChE102
Fall
2011
Class
Notes
‐
Electrochemistry
 
 
 
 
 
 
 
 E ‐4 
 Car
Battery
 [see
Petrucci
et
al.,
Figure
20.15]
 • Most
batteries
are
six
cell,
capable
of
12
V
 
 
 Ag/Zn
Button
Battery
 [see
Petrucci
et
al.,
Figure
20.16]
 
 
 Hydrogen
Fuel
Cell
 [see
Petrucci
et
al.,
Figure
20.17]
 
 
 
 
 Corrosion
Prevention
and
Sacrificial
Anodes
 


[see
Petrucci
et
al.,
Figure
20.21]
 
 
 Faraday’s
Law
 “The
mass
of
a
given
substance
that
is
produced
or
consumed
at
an
electrode
is
 proportional
to
the
quantity
of
electric
charge
passed
through
the
cell.”

 
 Charge
of
a
single
electron:
 
 e
=
1.6021773
x
10‐19
C
(coulombs)
 
 Charge
of
one
mole
of
electrons
(Faraday
constant...
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This note was uploaded on 12/28/2011 for the course CHE 102 taught by Professor Simon during the Winter '08 term at Waterloo.

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