Show why Teflon is much more resistant to oxidation than polyethylene is. Reset

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Show why Teflon is much more resistant to oxidation than polyethylene is.

Reset Help diradical high strong is abstraction of an atom A by atmospheric O2 to form The rate-limiting step in A-OO and a carbon free radical. The energies of bond breaking and bond forming in this step determine whether it will be successful, that is, whether the oxidation will occur low It is important to note that atmospheric oxygen exists in a form (.O-O.), so there is no energy required to disrupt any bond in O2 weak and the O- F bond is particularly weak, the Because the C-F bond is particularly energy required for O2 to abstract an F atom is huge, almost twice as large as the energy required for 02 to abstract an H from polyethylene. Both require energy barrier, but Teflon will decompose at a much higher temperature because the rate-limiting step has a higher energy barrier oxidation triradical temperature to get over the reduction

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ANSWER

The blank spaces are numbered from top to bottom as 1,2..., and are fille hereunder.

1. Oxidation

2. Diradical

3. Strong

4. High

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