Igcse Model Questions Vol1 2019 Chemistry Question 20
Practice objective / multiple choice question 20 from the 2019 Igcse Model Questions Vol1 Chemistry examination.
A polymer solution at 25 °C has an intrinsic viscosity \([\eta] = 0.85\ \text{dL g}^{-1}\). For this polymer the Mark-Houwink equation is \([\eta] = K\,M^{a}\) with \(K = 1.2\times10^{-3}\ \text{dL g}^{-1}\) and \(a = 0.75\). The monomer molar mass is 100 g mol⁻¹. Determine the average degree of polymerisation (DP) of the polymer.
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This is Igcse Model Questions Vol1 2019 Chemistry Question 20. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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