EASC-101 Lecture Notes - Lecture 9: Voltaic Pile
8 Apr 2016
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Document Summary
In a chemical reaction, the total mass of the reactants, is always equal to the total mass of the products. This law ties in well with the atomic theory, which states that atoms are never created or destroyed. In a chemical reaction the atoms and molecules are simply rearranged. This law of conservation of mass however does not apply to nuclear reactions, because there is some loss of mass: the mass is changed into energy. This was first suggested by albert einstein in his famous equation: E =mc2 (e is energy, m is mass, c2 is a large number) a very tiny amount of mass is equal to a very large amount of energy. In an open system some of the mass seems to disappear, when it is in the form of a gas. Other scientists followed up on the law of conservation of mass by stating the
