Nuclear Fission Reactions Purposely split a nucleus into two or more nuclei with smaller masses....
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Transcript of Nuclear Fission Reactions Purposely split a nucleus into two or more nuclei with smaller masses....
Nuclear Fission ReactionsNuclear Fission Reactions• Purposely split a nucleus into two or more
nuclei with smaller masses.
• Tremendous amounts of energy released.
[http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter22/Text_Images/FG22_08.JPG]
n 310 n U
10
23592 Ba Kr
14256
9136
9167 Wh 583,333,333 Wh
Combustion Nuclear
# of Hours you could play XBOX 360
57.3 hours3,645,833
hours
Nuclear Fission ReactionsNuclear Fission Reactions
• The neutrons released can cause a chain reaction with other atoms that are near them.
Click here for a chain reaction demo
[http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch23/graphics/23_19fig.gif]
Nuclear Fission ReactionsNuclear Fission Reactions
• In order for a chain reaction to continue, a certain amount of material, known as critical mass, is needed.
Click here for a simulation
Nuclear Fusion ReactionsNuclear Fusion Reactions
• Two nuclei of low mass are combined to form a nucleus of larger mass.
[http://www.windows.ucar.edu/sun/Solar_interior/Nuclear_Reactions/Fusion/dt_fusion.gif]
HH 21
31 nHe 1
042
Intermediate
94,444,444,444 Wh583,333,333 Wh
Combustion Nuclear
# of Hours you could play XBOX 360
3,645,833 hours
590,277,778 hours
Nuclear Fusion ReactionsNuclear Fusion Reactions
• Only occur when atoms can get close to one another at extremely high temperatures (ex: Stars).