Law of Conversation of Mass

Question 1: What does the law of conservation of mass state?

Answer:

The law of conservation of mass states that the total mass of any isolated system is always constant mass can neither be created nor destroyed.

Question 2: Who discovered the law of conservation of mass?

Answer:

The law of conservation of mass is first proposed by french chemist Antoine Lavoisier in 1789.

Question 3: State the Law of Conservation of Mass and Energy.

Answer:

Einstein states that there is a direct relation between the mass and energy of any object. He formulated an equation to justify its proof, this equation is called mass-energy equivalence. The equation is written as,

E = mc²

where,
E is the energy of the particle
m is the mass of the particle
c is speed of light

Question 4: Why is there no change in mass during chemical reactions?

Answer:

In a chemical reaction, atoms of reactants are rearranged to form the product and are neither created nor destroyed. Hence, there is no change in mass in a chemical reaction.

Question 5: Where is the law of conservation applicability found?

Answer: 

Law of conservation of mass can be seen in chemical reactions, like the production of carbon dioxide, or during the process of combustion of wood. It is applicable to all the phenomena occurring in the closed system.

Question 6: Which other reactions are used to display the law of conservation of mass?

Answer: 

Any combination reaction, where the reactants combine to form a product is used to verify law of conservation of mass. For example, the production of water from hydrogen and oxygen molecules. 

2H_{2 (4g)} + O_{2 (32g)} => 2H₂0 _(36g)

Law of conservation of mass states that “The mass can neither be created nor destroyed in a chemical reaction” French chemist Antoine Lavoisier was the first to state the law of conservation of mass in his book. There is just a rearrangement in the atoms of substances for the formation of compounds.

In the chemical process, the law of conservation of mass can be understood as the total mass of the reactant at the beginning of the reaction being equivalent to the mass of the product at the end of the reaction. 

Mass _reactants = Mass _products

Let’s learn about the law of conservation of mass in detail in this article,