Molecular Properties Flashcards
1
Q
What is Viscosity?
A
A fluids resistance to flowing
2
Q
Are branched chains more or less viscous than straight chains?
Why?
A
- Less viscous
- This is because they are less tightly packed
3
Q
Are alkanes more or less viscous than alkenes?
Why?
A
- More viscous
- > 2 Double bonds can decrease viscosity
4
Q
Are polar molecules more or less viscous than non-polar molecules?
Why?
A
- More viscous
- Stronger intermolecular forces
5
Q
What causes viscosity strength?
A
- Strength of intermolecular forces
~ Strong dispersion forces
~ Strong dipole-dipole attractions
6
Q
Saturated molecules have:
A
- Higher Melting Points (stronger Intermolecular Forces)
- Higher viscosity
- Higher Boiling Point
7
Q
Are amino acids soluble or insoluble?
Why?
A
- Soluble
- They can form hydrogen bonds with water
