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Plazek and O'Rourke measured the viscosity of polystyrene ( M = 3 , 4 0 0 ) as a function of temperature ( D .
Plazek and O'Rourke measured the viscosity of polystyrene as a function of
temperature DJ Plazek and VM O'Rourke, J Polym. Sci. Part A Plot
these data in the Arrhenius format versus and find apparent activation energies
for the lowest and highest temperatures measured. Compare these values to those obtained
from the data in Figure b and comment on their physical significance.
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