<s>
In	O
chemical	O
kinetics	O
,	O
an	O
Arrhenius	B-Application
plot	I-Application
displays	O
the	O
logarithm	O
of	O
a	O
reaction	O
rate	O
constant	O
,	O
ordinate	O
axis	O
)	O
plotted	O
against	O
reciprocal	O
of	O
the	O
temperature	O
abscissa	O
)	O
.	O
</s>
<s>
Arrhenius	B-Application
plots	I-Application
are	O
often	O
used	O
to	O
analyze	O
the	O
effect	O
of	O
temperature	O
on	O
the	O
rates	O
of	O
chemical	O
reactions	O
.	O
</s>
<s>
For	O
a	O
single	O
rate-limited	O
thermally	O
activated	O
process	O
,	O
an	O
Arrhenius	B-Application
plot	I-Application
gives	O
a	O
straight	O
line	O
,	O
from	O
which	O
the	O
activation	O
energy	O
and	O
the	O
pre-exponential	O
factor	O
can	O
both	O
be	O
determined	O
.	O
</s>
<s>
The	O
only	O
difference	O
between	O
the	O
two	O
forms	O
of	O
the	O
expression	O
is	O
the	O
quantity	O
used	O
for	O
the	O
activation	O
energy	O
:	O
the	O
former	O
would	O
have	O
the	O
unit	O
joule/mole	O
,	O
which	O
is	O
common	O
in	O
chemistry	O
,	O
while	O
the	O
latter	O
would	O
have	O
the	O
unit	O
joule	B-Language
and	O
would	O
be	O
for	O
one	O
molecular	O
reaction	O
event	O
,	O
which	O
is	O
common	O
in	O
physics	O
.	O
</s>
<s>
When	O
plotted	O
in	O
the	O
manner	O
described	O
above	O
,	O
the	O
value	O
of	O
the	O
y-intercept	B-Algorithm
(	O
at	O
)	O
will	O
correspond	O
to	O
,	O
and	O
the	O
slope	O
of	O
the	O
line	O
will	O
be	O
equal	O
to	O
.	O
</s>
<s>
The	O
values	O
of	O
y-intercept	B-Algorithm
and	O
slope	O
can	O
be	O
determined	O
from	O
the	O
experimental	O
points	O
using	O
simple	B-General_Concept
linear	I-General_Concept
regression	I-General_Concept
with	O
a	O
spreadsheet	B-Application
.	O
</s>
