Details and web sites are welcome, but please explain this simply!
2007-01-23 01:07:56 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
in e=mc2, e is energy in terms of joules, m is mass in kg, c is speed of light in vaccum(3*10^8 m/s)
mass is the mass difference between the reactants and products in atomic mass unit which has to converted to kg.
in nuclear fusion, elements of low atomic no. join to a heavy element and release energy.
in nuclear fission,an element with high atomic mass no. disintegrates to form elements of low atomic mass nos. with release of energy.
2007-01-23 01:21:40 · answer #1 · answered by iron muncher 3 · 0⤊ 0⤋
Energy and mass are interchangeable according to E=MC2. Because C2 is insanely big just a tiny change in mass M is a vast change in energy E.
Small amounts of mass are lost during fusion or fission and this translates into a colossal amount of energy.
Elements below the mass of iron will release energy when fusion takes place. Light elements like hydrogen, lithium or deuterium join to make heavier elements.
Elements higher than the mass of iron will release energy when fission takes place. A heavy element like Plutonium will split into two smaller elements.
2007-01-23 01:17:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
look when nuclear fission or fusion occurs there is an amount of energy produced.
E=MC^2(here E is energy)
by this formula we can calculate the energy produced by the nuclear fission of fusion.
2007-01-23 01:27:39 · answer #3 · answered by tonima 4 · 0⤊ 1⤋