10:46 Thu 8 Aug Cancel ADJUST A Adjust Filters 號 Crop a) 3 Nuclear fusion reactions power the Sun and other stars. i) Contrast what is meant by the terms fission and fusion when describing nuclear reac- tions. ii) In stars, the proton-proton reaction dominates. The steps are (1) 2HD+e+v+Q1, (2) D+ H He3+y+Q2, and then often (3) 2He3 →He4 + 2H+Q3. Given the masses 1.00784 amu for hydrogen, 4.002603 amu for helium-4 and 0.00055 amu for an electron, calculate the total energy Q released by the reaction leading to a single helium-4 atom, giving your answer in amu and in MeV. AUTO @ 17% Done

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10:46 Thu 8 Aug
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ADJUST
A
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號
Crop
a)
3
Nuclear fusion reactions power the Sun and other stars.
i) Contrast what is meant by the terms fission and fusion when describing nuclear reac-
tions.
ii) In stars, the proton-proton reaction dominates. The steps are (1) 2HD+e+v+Q1,
(2) D+ H He3+y+Q2, and then often (3) 2He3 →He4 + 2H+Q3. Given the masses
1.00784 amu for hydrogen, 4.002603 amu for helium-4 and 0.00055 amu for an electron,
calculate the total energy Q released by the reaction leading to a single helium-4 atom,
giving your answer in amu and in MeV.
AUTO
@ 17%
Done
Transcribed Image Text:10:46 Thu 8 Aug Cancel ADJUST A Adjust Filters 號 Crop a) 3 Nuclear fusion reactions power the Sun and other stars. i) Contrast what is meant by the terms fission and fusion when describing nuclear reac- tions. ii) In stars, the proton-proton reaction dominates. The steps are (1) 2HD+e+v+Q1, (2) D+ H He3+y+Q2, and then often (3) 2He3 →He4 + 2H+Q3. Given the masses 1.00784 amu for hydrogen, 4.002603 amu for helium-4 and 0.00055 amu for an electron, calculate the total energy Q released by the reaction leading to a single helium-4 atom, giving your answer in amu and in MeV. AUTO @ 17% Done
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