Question

Up to 98% of the energy of the sun comes from the "proton-proton" fusion process, which involves a number of steps. a.) It begins with the fusion of two protons (1H nuclei) into deuterium (2H) and "something else". Determine what this "something else" must be, using nuclear notation. b.) The deuterium produced in the first stage can now fuse with another proton to produce a light isotope of helium. Show this step with nuclear notation. c.) i. pp-I branch: two of these light helium isotopes can fuse to produce two protons and "something else". Determine what this "something else" must be, using nuclear notation. ii. pp-II branch: instead, one of these light helium isotopes can fuse with ordinary 4He and a Î²â€“ particle (electron) to make "something else". Determine what this "something else" must be, using nuclear notation. d.) In the pp-II branch, the final product will then fuse with a single proton to produce two identical daughters. What are they? (use nuclear notation) e.) In light of (c) and (d), what is the hydrogen in our sun slowly becoming? f.) Let's work out the energy released in the pp-I branch, which is the most common process in the sun. First, write down the total net process. g.) Use E0=mc2 to estimate the energy output per net reaction.

Name: 4up to 98 of the energy of the sun comes from the proton proton fusion process which involves a number of steps a it begins with the fusion of two protons 1h nuclei into deuterium 2h and som 19546
Uploaded: 2023-07-22T15:09:14-08:00
Duration: 15 s
Channel: Numerade
Description: 4up to 98 of the energy of the sun comes from the proton proton fusion process which involves a number of steps a it begins with the fusion of two protons 1h nuclei into deuterium 2h and som 19546

          Up to 98% of the energy of the sun comes from the "proton-proton" fusion process, which involves a number of steps.

a.) It begins with the fusion of two protons (1H nuclei) into deuterium (2H) and "something else". Determine what this "something else" must be, using nuclear notation.

b.) The deuterium produced in the first stage can now fuse with another proton to produce a light isotope of helium. Show this step with nuclear notation.

c.)
i. pp-I branch: two of these light helium isotopes can fuse to produce two protons and "something else". Determine what this "something else" must be, using nuclear notation.
ii. pp-II branch: instead, one of these light helium isotopes can fuse with ordinary 4He and a Î²â€“ particle (electron) to make "something else". Determine what this "something else" must be, using nuclear notation.

d.) In the pp-II branch, the final product will then fuse with a single proton to produce two identical daughters. What are they? (use nuclear notation)

e.) In light of (c) and (d), what is the hydrogen in our sun slowly becoming?

f.) Let's work out the energy released in the pp-I branch, which is the most common process in the sun. First, write down the total net process.

g.) Use E0=mc2 to estimate the energy output per net reaction.

Added by Kyle A.

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