conservation of mass


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conservation of mass

n.
A principle in classical physics stating that the total mass of an isolated system is unchanged by interaction of its parts.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

conservation of mass

n
(General Physics) the principle that the total mass of any isolated system is constant and is independent of any chemical and physical changes taking place within the system
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

conserva′tion of mass′



n.
the principle that in a system not subject to any external force, the mass is constant despite its changes in form.
Also called conserva′tion of mat′ter.
[1880–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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.
LN1: Conservation of Mass: If system s is closed to all transfer of matter and energy, then the mass of system s remains constant over time.
The mathematical equations used to describe the flow of fluids are the continuity and momentum equations, which describe the conservation of mass and momentum have been solved by commercial code FLUENT.
In [1], they proved that the maximum error in the conservation of mass is smaller than O([alpha][beta],[[beta].sup.2]) in the case of an even bottom profile when a coupled BBM system is used.
According to the law of conservation of mass, it is know that the mass of the production of poly carbonyl urea is equal to the total mass of raw material minus the production of methanol, so we assumed that the total mass of the reaction flask and raw materials was m1, the total mass of the reaction flask and production was m2.
Unlike previous models where the air and particles are uncoupled, this model attempts to explain the observed changes in test conditions by coupling the conservation of mass and energy equations.
However, Ruben Meerman, co-author of the study, refutes this and says that this perception violates the Law of Conservation of Mass. He asserts that most of the mass is exhaled as carbon dioxide and goes into the air.
"This violates the Law of Conservation of Mass. We suspect this misconception is caused by the energy in/energy out mantra surrounding weight loss," says Mr Meerman.
Following the basic principles of conservation of mass (a body of matter cannot disappear completely; it only changes its form and turns into a different matter), we can see where CRM is going.
After a survey of commercial computational fluid dynamics (CFD) codes, this advanced undergraduate textbook develops a comprehensive general purpose model of fluid flow and heat transfer from the basic principles of conservation of mass, momentum, and energy, and presents practical guidelines for carrying out a CFD simulation, solution assessment, and analysis.
But weather prediction has advanced enormously by using complex numerical models, built around the physical laws expressed as equations (Newton's laws of motion, conservation of mass, conservation of energy and the thermodynamic equation, equation of state).

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