Gay-Lussac's law

noun

Thermodynamics.

1. the principle that, for relatively low pressures, the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.

Gay-Lussac's law

/ ˈɡeɪˈluːsæks /

noun

1. the principle that gases react together in volumes (measured at the same temperature and pressure) that bear a simple ratio to each other and to the gaseous products

2. another name for Charles' law

Word History and Origins

Origin of Gay-Lussac's law¹

Named after J. L. Gay-Lussac

Example Sentences

Absolute Zero.—According to Gay-Lussac's law, the volume of a gas diminishes by 1 / 273 of its volume at 0� C. for each degree fall of temperature.

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The true explanation of Gay-Lussac's law of combination by volumes was thought out almost immediately by an Italian savant, Amadeo, Avogadro, and expressed in terms of the atomic theory.

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