Law of Conservation of Mass

State the Law of Conservation of Mass.

According to the law of conservation of mass, mass is neither created nor destroyed during a chemical reaction. For example, when coal is burned, the carbon atom in it changes into carbon dioxide. The carbon atom changes from a solid to a gas, yet its mass remains constant. 

Who gave the Law of Conservation of Mass?

The Law of Conservation of Mass was given by the French chemist Antoine Lavoisier in 1789.

Why is there no change in mass during chemical reactions?

Atoms can neither be created nor destroyed. Hence atoms in a chemical reaction only change their bond and position while transforming from reactant to product and hence the total mass of the chemical reaction is conserved and there is no change in mass during the chemical reaction.

What are some real-life examples of the law of conservation of mass?

Some real-life examples of the law of conservation of mass are:

  • Bonfire or Campfire – In a bonfire or a campfire the mass of the wood burned in the presence of air is equal to the mass of the ashes left, the carbon dioxide released, and water vapor obtained.
  • Melted Ice – When a piece of ice is melted, then the liquid or water obtained through it weight equals.

Is law of conservation of mass and matter the same?

Yes, the Law of Conservation of Mass and the Law of Conservation of Matter essentially refer to the same scientific principle, although the terms “mass” and “matter” have slightly different meanings.



Law of Conservation of Mass

Law of Conservation of Mass: The law of conservation of mass states that the mass can neither be created nor destroyed in a chemical reaction. This implies, in a closed system the mass of the elements involved initially in a chemical reaction is equal to the mass of the product obtained by the reaction.

Hence, for any type of chemical reaction, the total mass of the reactants and the products involved is conserved. This concept of mass conservation is widely used in chemistry and other fields like mechanics, dynamics, etc. 

In this article, we will about the Law of Conservation of Mass, its Definition, Formula, Examples, and Solved Examples and FAQs.

Table of Content

  • What is the Law of Conservation of Mass?
    • Law of Conservation of Mass
  • Formula of Law of Conservation of Mass
  • When Matter Undergoes a Physical Change?
    • When Matter Undergoes a Chemical Change
  • Examples on Law of Conservation of Mass
    • Formation of Water
  • Formation of Carbon Dioxide 
  • Limitation of Law of Conservation of Mass
  • Law of Conservation of Mass Class 9
  • Law of Conservation of Mass Examples

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