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MAT E 273 - Exam 3 Questions And
Correct Answers/ Latest Update /
Already Graded
QUIZ:What are the two basic characteristics of a linear polymer structure are directly
responsible for the fact that individual polymer molecules are capable of coiling,
tangling, raveling, wrapping, flexing, bending, etc.
- There mere fact that polymer molecules tend to be very long.
- The mere fact that backbone covalent bonds are strong covalent bonds.
- The mere fact that polymer molecules tend to have high molecular weight.
Ans: - The mere fact that polymer molecules tend be very long
- The mere fact that single covalent bonds (sigma bonds) allow bond
rotation
Strong _________ bonding binds atoms together within a polymer molecule.
Ans: Covalent
Weaker ___________________ bonds bind separate polymer molecules together in a bulk
polymer.
Ans: Van Der Waals
Consider adjacent molecules of PTFE.
Select all of the secondary bonding types that exist between these two molecules.
- Covalent Bonding
- Interactions between dipoles that are temporarily induced
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- Interactions between permanent dipoles
- Ionic
- Interactions between temporarily induced and permanent dipoles
- Metallic Bonding
- Hydrogen Bonding
Ans: - Interactions between dipoles that are temporarily induced and
permanent dipoles
Consider a PTFE molecule adjacent to a PVC molecule.
Select all of the secondary bonding types that exist between these two molecules.
- Covalent Bonding
- Interactions between dipoles that are temporarily induced
- Interactions between permanent dipoles
- Ionic
- Interactions between temporarily induced and permanent dipoles.
- Metallic Bonding
- Hydrogen Bonding
Ans: - Interactions between dipoles that are temporarily induced
- Interactions between temporarily induced and permanent dipoles
All factors being equal, the strength of a polymer tends to increase as the degree of
polymerization increases.
Ans: True
MAT E 273 - Exam 3 Questions And
Correct Answers/ Latest Update /
Already Graded
QUIZ:What are the two basic characteristics of a linear polymer structure are directly
responsible for the fact that individual polymer molecules are capable of coiling,
tangling, raveling, wrapping, flexing, bending, etc.
- There mere fact that polymer molecules tend to be very long.
- The mere fact that backbone covalent bonds are strong covalent bonds.
- The mere fact that polymer molecules tend to have high molecular weight.
Ans: - The mere fact that polymer molecules tend be very long
- The mere fact that single covalent bonds (sigma bonds) allow bond
rotation
Strong _________ bonding binds atoms together within a polymer molecule.
Ans: Covalent
Weaker ___________________ bonds bind separate polymer molecules together in a bulk
polymer.
Ans: Van Der Waals
Consider adjacent molecules of PTFE.
Select all of the secondary bonding types that exist between these two molecules.
- Covalent Bonding
- Interactions between dipoles that are temporarily induced
, 2|Page
- Interactions between permanent dipoles
- Ionic
- Interactions between temporarily induced and permanent dipoles
- Metallic Bonding
- Hydrogen Bonding
Ans: - Interactions between dipoles that are temporarily induced and
permanent dipoles
Consider a PTFE molecule adjacent to a PVC molecule.
Select all of the secondary bonding types that exist between these two molecules.
- Covalent Bonding
- Interactions between dipoles that are temporarily induced
- Interactions between permanent dipoles
- Ionic
- Interactions between temporarily induced and permanent dipoles.
- Metallic Bonding
- Hydrogen Bonding
Ans: - Interactions between dipoles that are temporarily induced
- Interactions between temporarily induced and permanent dipoles
All factors being equal, the strength of a polymer tends to increase as the degree of
polymerization increases.
Ans: True
