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Conservation Laws
A conservation law is a hypothesis based on observation and experiments which cannot be proved. These can be verified via experiments.
Law of conservation of Energy
- According to the general Law of conservation of energy, the energies remain constant over time and convert from one form to another.
- The law of conservation of energy applies to the whole universe and it is believed that the total energy of the universe remains unchanged.
- Under identical conditions, the nature produces symmetric results at different time.
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.
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