A state of matter in which if not contained the particles are far apart.
What is gas?
100
The conversion of a liquid to a gas or vapor.
What is vaporization?
100
Determines the shape of a crystal.
What is the arrangement of particles?
100
A diagram representing the limits of stability of the various
phases in a chemical system at equilibrium, with respect to
variables such as composition and temperature.
What is phase diagram?
100
Energy that a body possesses by virtue of being in motion.
What is kinetic energy?
200
The results of billions of rapidly moving particles
What is gas pressure?
200
When a liquid is heated to a temperature at which particles have enough energy to vaporize.
What is boiling?
200
The shape of a _____ reflects the arrangement of the particles within the solid.
What is crystal?
200
The temperature and pressure at which the solid, liquid, and vapor exist in equilibrium shown on a phase diagram.
What is triple point?
200
A space entirely devoid of matter.
What is vacuum?
300
An instrument measuring atmospheric pressure used especially in forecasting the weather and determining altitude.
What is barometer?
300
When vaporization occurs at the surface of a liquid that is not boiling.
What is evaporation?
300
In most solids, the atoms or molecules are packed _____.
What is tightly?
300
Sublimation occurs in solids with ____ that exceed atmospheric pressure at or near room temperature.
What is vapor pressures?
300
The smallest group of particles within a crystal that retains the geometric shape of the crystal.
What is unit cell?
400
The unit of temperature of a substance that is directly proportional to the average energy of the particles of a substance.
What is Kelvins?
400
Liquids evaporate faster when ____
What is heated?
400
Most solid substances are this.
What is crystalline?
400
What three things exist at triple point.
What is solids, liquids and vapors?
400
Each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.
What is allotropes?
500
When all kinetic energy is transferred without loss from one particle to another.
What is elastic collisions?
500
When only molecules with a certain amount of kinetic energy can escape the surface of a liquid.
What is evaporation?
500
When a solid is heated it's particles vibrate ____.
What is rapidly?
500
____ liquids can pass to water vapor without turning to ____.
What is frozen, liquid?
500
When anything solid turns into a gas without first becoming
liquid, that's sublimation.