The mass average molecular weight and number average molecular weight of a polymer are respectively 40000 and 30000. The poly-dispersity index of the polymer will be

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Solution

The correct option is B >1
$P . D . I = \frac{_{W}}{_{n}} = \frac{40000}{30000} = 1.33$

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The mass average molecular weight and number average molecular weight of a polymer are respectively 40000 and 30000. The poly-dispersity index of the polymer will be

The correct option is B >1P.D.I=¯¯¯¯¯¯¯¯¯MW¯¯¯¯¯¯¯Mn=4000030000=1.33

The correct option is B >1
$P . D . I = \frac{_{W}}{_{n}} = \frac{40000}{30000} = 1.33$