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Law of conservation of mass

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Law of conservation of mass

    • Posted by Mahi Mohsin 6 years, 9 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 9 months ago

    Law of conservation of Mass

    This is a principle used in analysis of chemical reactions.

    • A chemical reaction is basically a rearrangement of atoms among different molecules.
    • If the total binding energy of the reacting molecules is less than the total binding energy of the product molecules, the difference appears as heat and the reaction is exothermic.
    • The opposite is true for energy absorbing (endothermic) reactions.
    • Since the atoms are merely rearranged but not destroyed, the total mass of the reactants is the same as the total mass of the products in a chemical reaction.
    • Mass is related to energy through Einstein theory,

    E = mc2, c – speed of light in vacuum

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