The density of a given polyester filament sample is 1.38 g/cm3. Consider the density of fully crystalline polyester as 1.455 g/cm3 and that of fully amorphous polyester as 1.335 g/cm3. The percent crystallinity of the sample is ________.

The density of a given polyester filament sample is 1.38 g/cm3. Consid

1.	The density of a given polyester filament sample is 1.38 g/cm3. Consider the density of fully crystalline polyester as 1.455 g/cm3 and that of fully amorphous polyester as 1.335 g/cm3. The percent crystallinity of the sample is ________.
A.	48 to 49
B.	30 to 31
C.	39 to 40
D.	41 to 42
Answer» D. 41 to 42

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The density of a given polyester filament sample is 1.38 g/cm3. Consider the density of fully crystalline polyester as 1.455 g/cm3&nbsp;and that of fully amorphous polyester as 1.335 g/cm3. The percent crystallinity of the sample is ________.

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The density of a given polyester filament sample is 1.38 g/cm3. Consider the density of fully crystalline polyester as 1.455 g/cm3 and that of fully amorphous polyester as 1.335 g/cm3. The percent crystallinity of the sample is ________.