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Which consequence arises when a catalyst contamination alters adsorption constants during olefin polymerization?

A)Increased polymer chain branching formed
B)Decreased reaction vessel pressure levels
C)Elevated polymer average molecular weight
D)Reduced catalyst thermal runaway threshold

💡 Explanation

Polymerization kinetic reactions speed shifts through alteration in the Langmuir adsorption isotherm. Because catalyst site blockage preferentially inhibits chain termination over propagation, increased chain branching results and leads to structural irregularities rather than higher molecular weight where cleaner catalysts enhance yields. Termination becomes limited; lowering thermal threshold is incorrect.

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