Definition of Charles' law in English:

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Charles' law

(also Charles's law) Chemistry
A law stating that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.
Example sentences
  • The properties of a gas are described by a series of equations known as the gas laws, these are Boyle's law, Charles's law, and the constant volume law.
  • Used in the context of a Charles's law analysis, I found the term confusing, as it seems to imply that different components of a gaseous mixture can occupy different volumes within the same container.
  • Plot the Average Volume versus Temperature, print a hard copy of the graph, and describe how your results verify Charles's law.


Late 19th century: named after Jacques A. C. Charles (1746–1823), the French physicist who first formulated it.

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Syllabification: Charles' law

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