3. In dealing with the kinetics of free radical polymerization, it is usually to O The concentration of radical species is constant during the time that a chain is being polymerized. Assume that...

Extracted text: 3. In dealing with the kinetics of free radical polymerization, it is usually to O The concentration of radical species is constant during the time that a chain is being polymerized. Assume that reactivity depends on chain length, unlike the situation in condensation or step-growth polymerization O The concentration of radical species changes dramatically during the time a chain is being polymerized. Molecular weight is independent of the concentration of radicals during the time that a particular chain is being polymerized.