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Meaning of Gay-Lussac's law

Gay'-Lussac's' law'

Pronunciation: [key]
— Thermodynamics. 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. Also calledCf. Boyle's law.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.