|Temperature and heat do not have the same meaning and are not to be used interchangeably.|
Temperature is a measure of the random motions of a substance; for example, water molecules in warm water move faster than water molecules in cold water. <ref>Zumdahl, S.S., Zumdahl, S. L., DeCoste, D. J. (2006). World of Chemistry. Houghton Mifflin Company.</ref>
Three main scales are discussed in chemistry.
- Fahrenheit: Part of the system of English Units and commonly used in the USA.
- Kelvin: The SI Unit for fundamental temperature scale.
- Celsius: The common temperature scale for most of the world.
- Kelvin degrees (i. e., temperature differences on the Kelvin scale) are the same as Celsius degrees).
- Absolute zero was originally proposed by Joseph Lambert in 1779
Temperature Scale Conversions
- Water freezes at 273.15 K (i. e., on the Kelvin scale), so to convert from Celsius to Kelvin, you add 273.15.
- To convert from Kelvin to Celsius, you subtract 273.15.
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