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Page 1: NUCLEAR CHEMISTRY Fission & Fusion. splitting a nucleus into two or more smaller nuclei 1 g of 235 U = 3 tons of coal

NUCLEAR

CHEMISTRY

NUCLEAR

CHEMISTRYFission & FusionFission & FusionFission & FusionFission & Fusion

Page 2: NUCLEAR CHEMISTRY Fission & Fusion. splitting a nucleus into two or more smaller nuclei 1 g of 235 U = 3 tons of coal

splitting a nucleus into two or more smaller nuclei

1 g of 235U = 3 tons of coal

U23592

Page 3: NUCLEAR CHEMISTRY Fission & Fusion. splitting a nucleus into two or more smaller nuclei 1 g of 235 U = 3 tons of coal

chain reaction - self-propagating reaction

critical mass - mass required to sustain a chain reaction

Page 4: NUCLEAR CHEMISTRY Fission & Fusion. splitting a nucleus into two or more smaller nuclei 1 g of 235 U = 3 tons of coal

combining of two nuclei to form one nucleus of larger mass

thermonuclear reaction – requires temp of 40,000,000 K to sustain

1 g of fusion fuel = 20 tons of coal

occurs naturally in stars

C. Johannesson

HH 31

21

Page 5: NUCLEAR CHEMISTRY Fission & Fusion. splitting a nucleus into two or more smaller nuclei 1 g of 235 U = 3 tons of coal

235U is limited danger of meltdown toxic waste thermal pollution

fuel is abundant no danger of meltdown no toxic waste not yet sustainable

C. Johannesson

FISSION

FUSION

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