Question

H. State and explain the law of conservation
of mass.
I. State the law of multiple proportions.​

Answer 1

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H) The law of conservation of mass states that:

“The mass in an isolated system can neither be created nor be destroyed but can be transformed from one form to another”.

According to the law of conservation of mass, the mass of the reactants must be equal to the mass of the products for a low energy thermodynamic process.

It is believed that there are few assumptions from classical mechanics which define mass conservation. Later the law of conservation of mass was modified with the help of quantum mechanics and special relativity that energy and mass are one conserved quantity. In 1789, Antoine Laurent Lavoisier discovered the law of conservation of mass.

Law of conservation of mass can be expressed in the differential form using the continuity equation in fluid mechanics and continuum mechanics as:

∂ρ∂t+▽(ρv)=0

I. Law of multiple proportions, statement that when two elements combine with each other to form more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Answer 2

Answer:

Law of conservation of mass states that mass is neither created nor destroyed in chemical reactions. the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

Law of multiple proportions, states that when two elements combine with each other to form more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

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