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LSH CChem Unit 1B
Temperature and Thermal States of Matter
Term | Definition |
---|---|
Heat | Thermal energy |
Temperature | The average kinetic energy within the particles of a substance |
Absolute zero | A state where there is no kinetic energy within the particles of a substance (O Kelvin) |
Sublimation | A solid vaporizing - not forming a liquid |
Solid | Thermal state when the bonds between the particles are rigid; shape and volume are fixed |
Liquid | Thermal state when the bonds are fluid - particles are free to flow - shape is not fixed but volume is fixed |
Gas | Thermal state when the particles have too much kinetic energy to be attracted to each other - particles bounce off each other - no fixed shape or volume |
Plasma | An ionized gas |