experimental chain dimensions for poly(ethylene terephthalate) (pet) at 275°c are given by o/m 0.90 å2mol/g. calculate c[infinity](6 points), the statistical segment length (6 points), and the persistence length for this polymer (6 points). based on these numbers, is pet a flexible polymer, or not (1 points)? explain your answer.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

4d^55s^1 ( third choice)