128. Solving a chemistry problem
Plot the swelling kinetics curve Qt=f(t)) of natural rubber in ethanol and determine graphically (lnqQ∞/Q∞-Qt= f(t)) the swelling rate constant K using the following experimental data:
Swelling time t, hour 1 4 8 12 20 28 32 40 48
Amount of liquid absorbed Qt,% 9.0 34.0 36.0 71.0 87.5 94.0 97.0 100 100
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