logging in or signing up Fission and Fusion grazianir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 740 Category: Entertainment License: All Rights Reserved Like it (1) Dislike it (1) Added: November 03, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Fission and Fusion : Fission and Fusion Fission : Fission Mass of a nucleus is slightly less than the mass of its parts. mnucleus < mprotons + mneutrons mass defect Mass defect is converted to energy, and holds the nucleus together E = mc2 Fission Reactions : Fission Reactions Large nucleus split into two or more smaller ones, with some particles left over (maybe) A tiny bit of mass is converted into energy E = mc2 Law of Conservation of Matter does not hold true! Law of Conservation ofMatter and Energy : Law of Conservation ofMatter and Energy Matter and energy can be converted Total of mass and energy is conserved Fission Reactions : Fission Reactions Small amount of matter is lost Large amount of energy is produced Matter-Energy Conversion : Matter-Energy Conversion If a total of 1 gram of matter is converted to energy, how much energy would that be? E = mc2 E = 0.001 kg x (3 x 108 m/s)2 E = 9 x 1013 J (1/3 of the total energy produced in PA nuclear power plants in 2006) Nuclear Power : Nuclear Power U + n ? + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n ? + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + 3 n + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power In Pennsylvania, 34% of our electricity is produced using nuclear power. In the USA, 20% of our electricity is produced using nuclear power. Nuclear Power Plant : Nuclear Power Plant Design Boiling Water Reactor (BWR) Pressurized Water Reactor (PWR) Model Two models will be built, labeled, compared Questions about nuclear power Questions about atomic theory Nuclear Study so far… : Nuclear Study so far… Radioactive decay Nuclear bombardment Fission reactions Next… Fusion reactions Nuclear Fusion : Nuclear Fusion Two small nuclei joined by bombardment High temperature High pressure Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H He + n + Energy Nuclear Fusion in Stars : Nuclear Fusion in Stars H He + Energy +2 e+ + 2 neutrinos Since our sun is a smaller star, it will fuse H to He to C Larger stars fuse C to O to Ne to Mg to Si to Fe Nuclear Fusion in Stars : Nuclear Fusion in Stars H He + Energy +2 e+ + 2 neutrinos Elements heavier than Fe are formed when large stars undergo supernova explosions. Nuclear Fusion on Earth : Nuclear Fusion on Earth Because of the very high temperatures and pressures needed and the very large amount of energy released, we cannot yet control fusion reactions. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Fission and Fusion grazianir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 740 Category: Entertainment License: All Rights Reserved Like it (1) Dislike it (1) Added: November 03, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Fission and Fusion : Fission and Fusion Fission : Fission Mass of a nucleus is slightly less than the mass of its parts. mnucleus < mprotons + mneutrons mass defect Mass defect is converted to energy, and holds the nucleus together E = mc2 Fission Reactions : Fission Reactions Large nucleus split into two or more smaller ones, with some particles left over (maybe) A tiny bit of mass is converted into energy E = mc2 Law of Conservation of Matter does not hold true! Law of Conservation ofMatter and Energy : Law of Conservation ofMatter and Energy Matter and energy can be converted Total of mass and energy is conserved Fission Reactions : Fission Reactions Small amount of matter is lost Large amount of energy is produced Matter-Energy Conversion : Matter-Energy Conversion If a total of 1 gram of matter is converted to energy, how much energy would that be? E = mc2 E = 0.001 kg x (3 x 108 m/s)2 E = 9 x 1013 J (1/3 of the total energy produced in PA nuclear power plants in 2006) Nuclear Power : Nuclear Power U + n ? + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n ? + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + ? + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + ? + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power U + n Ba + Kr + 3 n + Energy Mass numbers must balance Atomic numbers must balance Nuclear Power : Nuclear Power In Pennsylvania, 34% of our electricity is produced using nuclear power. In the USA, 20% of our electricity is produced using nuclear power. Nuclear Power Plant : Nuclear Power Plant Design Boiling Water Reactor (BWR) Pressurized Water Reactor (PWR) Model Two models will be built, labeled, compared Questions about nuclear power Questions about atomic theory Nuclear Study so far… : Nuclear Study so far… Radioactive decay Nuclear bombardment Fission reactions Next… Fusion reactions Nuclear Fusion : Nuclear Fusion Two small nuclei joined by bombardment High temperature High pressure Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H ? + n + Energy Nuclear Fusion : Nuclear Fusion H + H He + n + Energy Nuclear Fusion in Stars : Nuclear Fusion in Stars H He + Energy +2 e+ + 2 neutrinos Since our sun is a smaller star, it will fuse H to He to C Larger stars fuse C to O to Ne to Mg to Si to Fe Nuclear Fusion in Stars : Nuclear Fusion in Stars H He + Energy +2 e+ + 2 neutrinos Elements heavier than Fe are formed when large stars undergo supernova explosions. Nuclear Fusion on Earth : Nuclear Fusion on Earth Because of the very high temperatures and pressures needed and the very large amount of energy released, we cannot yet control fusion reactions.