Indefinite shape(they assume the shape of container
Definite volume(they are not easily compressed)
What are the properties of solids
High densities compared to gases
Definite shape.
Definite volume(they are easily compressible)
Maybe crystalline or amorphous
The tendency of liquids to minimize their surface area. Causing liquids to have a "skin" that resist penetration, is known as...
Surface Tension
When molecules at the surface of a liquid interact with neigbhors below them, resulting in a net inward force that creates tension at the surface is...
Surface Tension at work.
The resistance of a liquid to flow. Liquids that are more ________ flow more slowly than liquids that are not.
viscous; Viscosity
When a substance in converted from a liquid to a gaseous state. This is known as...
Evaporation
The rate of evaporation increases with....
Increased surface area
Increased temperature
Decreasing strength of intermolecular forces
Volatile liquids....
evaporate easily
Nonvolatile liquids...
don't evaporate easily
When a substance is converted from its gaseous state to liquid state. This is known as...
Condensation
Evaporation and Condensation are...
OPPOSITES
The point where the rate of condensation and evaporation become equal. And the number of gaseous water molecules above the liquid remain constant. This is known as...
Dynamic Equilibrium
The ___________ of a liquid is the partial pressure of its vapor in dynamic equilibrium with its liquid
Vapor Pressure
Vapor Pressure increases with:
Increasing temperature
Decrease in strength of intermolecular forces
The temperature at which the vapor pressure of a liquid is equal to the pressure above it. This is known as...
Boiling point
The boiling point at a pressure of 1.0 atm
Normal Boiling Point
During Evaporation, heat is absorbed also referred to as an _____________ reaction
endothermic
During Condensation heat is released also referred to as an _____________ reaction
exothermic
When atoms and molecules have enough thermal energy to overcome the intermolecular forces. Turning solids into liquids.
Melting Point
Melting is an example of an ____________ reaction
endothermic
Freezing is an example of an ____________ reaction
exothermic
A physical change in which a substance changes from its solid state directly to its gaseous state.
Sublimination
The default intermolecular force, present in all molecules and atoms is the ____________.
A.K.A. The London Force
Dispersion force
When atoms are not symmetrically arranged around the nucleus. This fleeting charge separation is called....
Instantaneous dipole
This exist in all polar molecules. Polar molecules have permanent dipoles.
Dipole-Dipole
Author
jnichox2
ID
247336
Card Set
Chem CH. 12 Liquids, Solids, and Intermolecular Forces