Plot the kinetic curve of swelling of rubber in carbon tetrachloride according to the following experimental data:
Swelling time τ, min 6 30 90 150 210 240 270 330
Degree of swelling ατ 0.33 1.15 2.33 2.91 3.25 3.41 3.58 3.58
Determine the swelling rate constant K graphically.

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