Gases
The energy an object has because of its motion.
What is kinetic energy?
When vaporization occurs at the surface of a liquid that is not boiling.
What is evaporation?
The temperature at which a liquid changes into a solid.
What is freezing point (fp)?
The change of a substance from a solid to a vapor without passing through the liquid state.
What is sublimation?
If someone compressed a single mole of gas from a 1L container into a container that is half the size, this would happen to the density of the gas.
What is increase?
A device used to measure atmospheric pressure.
What is a barometer?
The conversion of a liquid to a gas or vapor.
What is vaporization?
The temperature at which a solid changes into a liquid.
What is melting point (mp)?
This table gives the conditions of temperature and pressure at which a substance exists as solid, liquid, or gas (vapor).
What is a phase diagram?
What are gases and liquids.
Unlike molecules of a real gas, the collisions of molecules within an ideal gas are completely _______.
What is elastic?
The temperature at which the vapor pressure of the liquid is just equal to the external pressure on the liquid.
What is boiling point (bp)?
With the exception of water; as matter transitions from gas -> liquid -> solid the overall density of the substance tends to __________.
What is increase?
Critical Point
This solid substance is used as a coolant because it sublimes instead of melting at normal atmospheric pressure.
What is dry ice/solid carbon dioxide?
The particles of a real gas behave most like an ideal gas under these two conditions.
What are high temperatures & low pressures?
A measure of force exerted by a gas above a liquid.
What is vapor pressure?
A solid that lacks an ordered internal structure. Examples of it are Rubber, plastic, and asphalt.
What is an amorphous solid?
Describes the only set of conditions which all three phases can exist in equilibrium with one another.
What is the triple point?
This term refers to force above a liquid in a closed container when the rate of condensation and evaporation are equal.
What is Equilibrium Vapor Pressure?
The equation of the average kinetic energy states the following:
What is...
Kinetic Energy=1/2 mv2.
This is the amount of energy required to freeze 1 mole of a liquid into solid at that substance's freezing point.
What is molar enthalpy of fusion?
As water (H2O) changes from a solid to a liquid state, the density of the substance ___________.
What is increases?
In order for sublimation to occur in water, it must be placed in a relatively ______ pressure and ______ system.
What is:
1. LOW pressure
2. LOW temperature
Name the 3 intermolecular forces responsible for the attraction of particles especially in the solid and liquid phases.
What are:
1. Hydrogen bonding
2. London dispersion forces/Vander Waal Forces
3. Dipole-Dipole interactions