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Glossary
K  
kelvin
A unit of temperature equal to 1/273.16 of the thermodynamic temperature of the triple point of water; the kelvin is the same size as the degree Celsius. The thermodynamic temperature scale (Kelvin scale) has absolute zero as its zero point.
ketone
An organic compound containing a carbonyl group that is bonded to two other carbon atoms, R-C(=O)-R'.
kilogram
The SI unit for mass.