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ch. 3 vocab
all vocab
| Term | Definition |
|---|---|
| solid | state of matter when a material has a definite size and shape |
| liquid | state of matter when a material has a definite volume but no definite shape |
| gas | state of matter when a material has no shape or volume |
| kenetic energy | energy in motion |
| pressure | force distributed over an area |
| absolute zero | temperature of 0 kelvin |
| charles law | volume of a gas is proportional if its temperature in kelvins if the pressure and number of particles in the gas are constant |
| boyleks law | volume of a gas if inversely proportional to its pressure amd the numbers of particles are constant |
| phase change | reversible physical change |
| endothermic | absorbs energy from its surroundings |
| heat of fusion | amount of energy absorbed by a substance |
| exothermic | substance releases energy to the surrounding |
| vaporization | change from liquid to gas |
| heat of vaporization | energy it takes to vaporize |
| evaporation | change a substance from liquid to gas below the boiling point |
| vapor pressure | pressure caused by collisions of particles |
| condensation | substance changes from vapor or gas to liquid |
| sublimation | change from solid to a gas or vapor |
| deposition | when a gas or vapor turns directly into a solid |