Polydispersity index is defined as ______ where Mw and Mn are the weight average and number average molecular masses respectively.

Polydispersity index is defined as ______ where Mw and Mn are the weig

1.	Polydispersity index is defined as ______ where M_w and M_n are the weight average and number average molecular masses respectively.
A.	M<sub>w</sub> x M<sub>n</sub>
B.	M<sub>w</sub>/M<sub>n</sub>
C.	M<sub>n</sub>/M<sub>w</sub>
D.	M<sub>w</sub> M<sub>n</sub>
Answer» C. M<sub>n</sub>/M<sub>w</sub>