Nuclear fusion is a nuclear reaction in which two light atoms combine to create a single, more massive atom.The resulting atom has a slightly smaller mass than the sum of the masses of the original atoms.
The process releases excess binding energy from the reaction, based upon the binding energies of the atoms involved in the process.The difference in mass is released in the form of energy during the reaction, according to the Einstein formula E = mc2, where E is the energy in joules, m is the mass difference in kilograms, and c is the speed of light (approximately 300,000,000 or 3 x 108 meters per second).
This is the process that occurs in the interiors of stars including the sun. Hydrogen fusion is responsible for the enormous energy output that stars produce. The reaction involves three steps.
1)Two protons combine to form a deuterium nucleus, which consists of one proton and one neutron. A positron (also called an anti-electron) and a neutrino (a particle with negligible mass but extreme penetrating power) are generated during this part of the process.
2)The deuterium nucleus combines with another proton, forming a nucleus of helium 3, which consists of two protons and one neutron.
Answered by
Ashish
, an ibibo Wizard,
at
5:48 PM on March 01, 2008