law of conservation of mass


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Related to law of conservation of mass: law of conservation of matter

law of conservation of mass

The principle that matter can neither be created nor be destroyed, now part of the first law of thermodynamics. See Note at thermodynamics.
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Noun1.law of conservation of mass - a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
conservation - (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
References in periodicals archive ?
The law of conservation of mass states that mass in a closed system--where nothing is added or taken away--will stay the same.
However, Ruben Meerman, co-author of the study, refutes this and says that this perception violates the Law of Conservation of Mass.
This question has preoccupied chemists since Antoine Lavoisier's discovery of the law of conservation of mass for chemical transformations in 1775.

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