In part one of this lab, a galvanic cell was created using the reaction Pb(s)
Cu (s)+ Pb
(aq) placed in a water at five different temperatures; 22.5
C, and 70
C. The cell voltage was then measured at each temperature.
values were .489v, .492v, .489v, .496v, and .510v respectively.
Then using the equation,
G was found to be -94.4 kJ, -94.9 kJ, -94.36 kJ, -95.7 kJ, and -98.4 kJ
Then using the equation K=e
and the determined values the K values
were found to be 4.9 x10
, 1.06 x10
, 1.13 x10
, 5.27 x10
It can be seen that as temperature increased,
G decreased and K values increased.
was what was expected of the experiment.
These values were plotted on a graph using
From this plot, the experimental values were shown to be
G= -95 kJ,
H= -93 kJ,
S= 61.027, K= 2.5 x10
These were compared to the