A law stating that the volumes of gases undergoing a reaction at constant pressure and temperature are in a simple ratio to each other and to that of the product.
‘Charles' law also is known as Gay-Lussac's law and the constant pressure law.’
‘This important elaboration came to be known as Gay-Lussac's law of combining volumes.’
‘This law provides an explanation for why Gay-Lussac's law of combining volumes works.’
‘If this was the right formula for water, then both Gay-Lussac's law of combining volumes and Lavoisier's law of conservation of mass could not be right.’
‘Today, Gay-Lussac's law is stated as follows: The ratio of the volumes of gases consumed or produced in a chemical reaction is equal to the ratio of simple whole numbers.’
Origin
Early 19th century named after Joseph L. Gay-Lussac (1778–1850), French chemist and physicist.
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