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Chemistry 10.2 terms
| Question | Answer |
|---|---|
| temperature | the average kinetic energy of the particles in a material |
| absolute zero | the temperature at which a substance would have zero kinetic energy |
| kelvin scale | a temperature scale using degrees celsius, where zero equals ABSOLUTE zero |
| kelvin (K) | the divisions on the kelvin scale (not degrees kelvin, just kelvin) |
| diffusion | the process by which particles of matter fill a space because of random motion |
| evaporation | the process by which particles of a liquid form a gas by escaping from the surface |
| sublimation | the process by which particles of a solid escape from its surface and form a gas |
| condensation | the reverse of evaporation; gas particles come together and form a liquid |
| vapor pressure | the pressure of a substance in equilibrium with its liquid |
| boiling point | when vapor pressure equals pressure exerted on the surface of a liquid |
| Joule | the SI unit of energy required to lift a 1kg mass 1m against the force of gravity |
| heat of vaporization | the energy absorbed when 1kg of a liquid vaporizes at its boiling point |
| melting point | the temperature of a solid when its crystal lattice begins to disintegrate |
| freezing point | the temperature of a liquid when it begins to form a crystal lattice and becomes a solid |
| heat of fusion | the energy released as 1kg of a substance solidifies at its freezing point |
Created by:
nathanbsks