chemistry final vocab 10
Order by
21 terms
Terms | Definitions |
|---|---|
 kinetic energy | the mechanical energy that a body has by virtue of its motion |
| vacuum | a region empty of matter |
| vaporization | liquid to gas |
| melting point | the temperature at which a substance changes from a solid to a liquid |
| amorphous solid | A solid made up of particles that are not arranged in a regular pattern |
| sublimation | (chemistry) a change directly from the solid to the gaseous state without becoming liquid |
| gas pressure | results from the force exerted by a gas per unit surface area of an object; due to collisions of gas particles with the object |
| barometer | an instrument that measures atmospheric pressure |
| evaporation | the process of becoming a vapor |
| allotrope | a structurally different form of an element |
| glasses | solids that consist of densely packed atoms arranged at random |
| atmoshperic pressure | Measure of the pressure of the earth's atmosphere per unit area. It is 760 mm Hg at sea level and decreases with increasing elevation. |
| pascal | a unit of pressure equal to one newton per square meter |
| vapor pressure | the pressure exerted by a vapor over a liquid |
| crystal | a rock formed by the solidification of a substance |
| phase diagram | a graph of the relationship between the physical state of a substance and the temperature and pressure of the substance |
| kinetic theory | (physics) a theory that gases consist of small particles in random motion |
| standard atmosphere unit | 1 atm=760 mm Hg=760 torr=101.3 kPa |
| boiling point | the temperature at which a substance changes from a liquid to a gas |
| unit cell | the smallest group of atoms or molecules whose repetition at regular intervals in three dimensions produces the lattices of a crystal |
| triple point | the temperature and pressure conditions at which the solid, liquid, and gaseous phases of a substance coexist at equilibrium |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.