Nuclear Energy.
Date Submitted: 09/10/2006 02:18:00
Category: / Society & Culture / Religion
Length: 1 pages (366 words)
Category: / Society & Culture / Religion
Length: 1 pages (366 words)
* In the 1930's nuclear energy became a serious possibility.
* 1932 - Discovery of the neutron.
* No change, ergo, can probe nucleus.
* Hahn and Strassmann fired neutrons at U nucleus.
* Lise Meitner and Otto Frisch interpreted this:
Neutrons caused splitting of U into smaller nuclei
* Fission had occurred.
* Potent source of energy!
* Energy from
E=mc2
* In more complete form, Einstein showed that at relativistic speeds we cannot use k=(0.5)mv2 .
* Remember from special relativity, that as …
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…of protons).
(iii) When they are close enough, the nuclear strong force pulls the protons together.
Neutrons assist in binding.
(iv) Potential energy decreases. Amount = binding energy.
(v) This means mass decreases.
* Peak binding energy about mass number = 60. (Fe to Cu). Most stable.
* Energy released by fusion up to about A=60. Energy input above that.
* Energy released by fission from top end down to 60.
Canadian Reactor Technology
AECL designed the CANDU reactor (Canada Deuterium Uranium)
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