Einstein mass-energy conversion equation

Nuclear mass is always lower than the sum of proton and neutron masses because of mass-energy conversion, which transforms part of the mass into binding energy. For example, He has mass 4.002604, whereas the total mass of two protons and two neutrons is 4.032981. Based on Einstein s equation... 

The splitting of the atom was accompanied by the release of neutrons and the conversion of a small amount of mass to energy. The amount of energy could be calculated using Einstein s famous 1905 equation E = me2, and a new source of power was born. 

This set of equations connects Planck s photon energy Ep with Einstein s mass/en-ergy equivalence, with Boltzmann s kinetic energy, with the kinetic energy of a particle and with the kinetic energy of an electron in an electric field of a voltage U of 1 V. The most important conversion factors used in photochemistry and photophysics are collected in Tab. 3-2. 

Einstein equation says that mass m can be converted ito energy E, and the conversion factor is a huge number, c, which is the velocity of light squared. One can calculate that the total mass of the fission products remaining at the end of the reaction is slightly less than the mass of the uranium atom plus neutron at the start. This decrease of mass, multiplied by c, shows numerically why the fission fragments are so energetic. 

What is the source of the tremendous energy of the fission process It ultimately comes from the conversion of mass into energy, according to Einstein s famous equation, E = mc, where E is energy that results from the loss of an amount of mass m, and c is the speed of light (186,000 miles/s, or 3.00 X 10 m/s). If the masses of the products of the fission of a uranium-235 atom by... 

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