Prentice hall chemistry ch.13 states of matter vocab
About this set
Created by:
bignoseinc on February 29, 2012
Subjects:
Classes:
Log in to favorite or report as inappropriate.
Order by
24 terms
Terms | Definitions |
|---|---|
 Kinetic energy | The energy an object has because of its motion |
| Kinetic theory | All matter consists of tiny particles that are in constant motion |
| Gas pressure | Results from the force exerted by a gas per unit surface area of an object |
| Vacuum | An empty space with no particles and no pressure |
| Atmospheric pressure | Results from the collisions of atoms and molecules in air with the objects |
| Barometer | Is a device that is used to measure atmospheric pressure |
| Pa,kPa,mmHg,atm | The SI unit of measures |
| Standard atmosphere | Is the pressure required to support 760mm of mercury in a mercury barometer at 25c |
| Formula for converting units | 1atm = 760mm Hg = 101.3kPa |
| Vaporization | The conversion of a liquid to a gas or vapor |
| Evaporation | A conversion occurs at the surface of a liquid that is not boiling |
| Vapor pressure | Is a measure of the force exerted by a gas above a liquid |
| Dynamic equilibrium | The rate of evaporation of liquid equals the rate of condensation of vapor |
| Boiling point | The temps tire at which the vapor pressure of the liquid is just as equal as the external pressure on the liquid |
| Normal boiling point | Defined as the boiling point of a liquid at a pressure of 101.3kPa |
| Melting point | Is the temperature at which a solid changes into a liquid |
| Crystal | The particles are arranged in an orderly,repeating,three-dimensional pattern crystal lattice |
| Unit cell | The smallest group of particles within a crystal that retains the geometric shape of the crystal |
| Allotropes | Two or more different molecular forms of the same element in the same physical state |
| Amorphous solid | Lacks an ordered internal structure |
| Glass | Is a transparent fusion product of inorganic substances that have cooled to a rigid state without crystallizing |
| Sublimation | The change from a substance from a solid to a vapor without passing through the liquid state |
| Phase diagram | Gives the conditions of temperature and pressure at which a substance exists as solid,liquid,and gas |
| Triple point | Describes the only set of conditions at which all three phases can exist in equilibrium with one another |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.