When the chain-growth polymerization is conducted in dilute and more concentrated solutions the resulting degr

When the chain-growth polymerization is conducted in dilute and more concentrated solutions the resulting degrees of polymerization/molecular weights obtained are observed to be very different, with the polymer produced in dilute solution having a substantially higher Xn.
Offer an explanation for the cause of this behavior.

Any help please :)

I would have an idea. Chain growth polymerization leads to longer and longer chains until the growing chain terminates. One way of termination is for two of the radicals to combine and terminate two growing chains. As long as there is an appreciable concentration of monomer, it is more likely for a growing end to encounter another monomer rather than another growing chain (and so lead to termination.). A growing chain radical can also abstract a hydrogen from another chain and terminate and this becomes less likely as the concentration decreases.

Who the hell would even know what that means?