Do You know, how Nuclear Fission Reactions taken place...?

Nuclear Fission Reactions, nuclear power energy resource

·         When large atomic nuclei are hit with neutrons they can become highly unstable if the neutron is absorbed by the nucleus. The larger unstable nucleus breaks into two smaller 'daughter' nuclei and also release more neutrons, as well as beta and alpha particles and gamma.

 

•  The two smaller atoms formed are themselves usually unstable and radioactive.
  o    The nuclear fission equations below are a gross simplification of the process!
    This process is called nuclear fission and because it is accompanied by an enormous release of energy, it forms the basis of nuclear power.
  
  
  
  
  
  
  
  
  
   
• ·         The radioisotope uranium-235  is particularly useful for energy generation by nuclear fission.
           Much of the energy released is initially the kinetic energy of the fission fragments, but collisions, radioactive decay etc. result in most of it changing to heat and some as electromagnetic radiation.
           The nuclear fission process of energy release is carried out under controlled conditions in a nuclear reactor.
  o    The nuclear reaction must be well sealed with thick walls of concrete and steel.
  o    Heat exchange pipes of water or carbon dioxide convey the heat from the reactor to the boilers which generate the steam to drive the steam turbines and generators.
  
  
           The heat energy can be used to boil water to make steam to drive a turbine and electrical generator in a nuclear power station.
  
  
  
  
  
  
  
   
  ·         The energy release is much greater than for exothermic chemical reactions eg 1g uranium nuclear fuel releases the same amount of energy as 1 tonne of coal (= 1000kg =  1000000g), a million x energy density factor.