A fuel that doesn’t burn. What is it?Answers
· Uranium. When Uranium atoms split into two (fission) they release energy which can be captured in a nuclear power station. This is a nuclear reaction and is fundamentally different to burning (combustion is a chemical reaction)7.17 and 7.18 starter 213 January 201214:02How many protons and neutrons are there in
· 23592U?· 23692U?Answers
· 23592U = 92 protons; 143 neutrons.This radioisotope of Uranium is commonly used as a fuel for nuclear power stations
· 23692U = 92 protons; 144 neutronsThis radioisotope of Uranium is highly unstable and is artificially created in nuclear power stations where it undergoes fission
7.17 and 7.1812 January 201210:32· 7.17 understand that a nucleus of U-235 can be split (the process of fission) by collision with a neutron, and that this process releases energy in the form of kinetic energy of the fission products· 7.18 recall that the fission of U-235 produces two daughter nuclei and a small number of neutrons<<Nuclear Fission.pptm>><<U235 fission animation.swf>>PhET animation - nuclear fission31 January 201213:34<<nuclear-fission_en.jar>>WebsiteEmbed code for your blog<div style="position: relative; width: 300px; height: 225px;"><a href="http://phet.colorado.edu/sims/nuclear-physics/nuclear-fission_en.jnlp" style="text-decoration: none;"><img src=" " alt="Nuclear Fission" style="border: none;" width="300" height="225"/><div style="position: absolute; width: 200px; height: 80px; left: 50px; top: 72px; background-color: #FFF; opacity: 0.6; filter: alpha(opacity = 60);"></div><table style="position: absolute; width: 200px; height: 80px; left: 50px; top: 72px;"><tr><td style="text-align: center; color: #000; font-size: 24px; font-family: Arial,sans-serif;">Click to Run</td></tr></table></a></div>
Thursday, March 29, 2012
7.17 and 7.18
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