Chapter 11 Flashcards
is a homogenous part of the system in contact with other parts of the system but separated from them by a well-defined boundary
Phase
- assumes the volume and shape of its container
- Low density
- Very compressible
-Very Free motion
Gas
- Has a definite volume but assumes the shapes of its containers
- High density
-Only slightly compressible
-Slide past one another freely
Liquid
- Has a definite shape and volume
- High density
- Virtually incompressible
- Vibrate about fixed positions
Solid
IMFA is…
Intermolecular forces of attraction
are the attractive forces between molecules
Intermolecular forces
hold atoms together in a molecule
Intramolecular forces
Generally, intermolecular forces are much… than intramolecular forces
weaker
As IMFA increases, melting point? And vice versa.
increases
As IMFA increases, boiling point? And vice versa.
increases
As IMFA increases, viscosity? And vice versa.
increases
As IMFA increases, surface tension? And vice versa
increases
As IMFA increases, vapor pressure? And vice versa.
decreases
attractive forces between polar molecules
Dipole-dipole forces
attractive forces between an ion and a polar molecule
Ion-Dipole Forces