Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Question
Chapter 16, Problem 4Q
To determine
The meaning of hydrogen fusion.
The fundamental difference between hydrogen fusion and burning of a log in a fireplace.
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Check out a sample textbook solutionStudents have asked these similar questions
Why does helium fusion require a higher temperature than hydrogen fusion?
The energy-releasing nuclear fusion reactions in the Sun are illustrated below.
Which choice below best describes the last reaction of the series?
He
He
Pratan
Y Ganmaay
Не
Nan
V
Ptran
1-H and 1-H fusing to form a 2-Hh
O 2-H and 1-H fusing to form a 3-He
3-He and 3-He fusing together to form 4-He (and re-releasing two 1-H)
Hydrostatic Equilibrium replies on which of the following to happen?
(choose all that apply)
Internal pressure from fusion to push out.
The outward pull of gravity from the Sun
O Gravity to pull inwards.
The fusion of Helium into Carbon
The start of the CNO Cycle in stars.
Chapter 16 Solutions
Universe: Stars And Galaxies
Ch. 16 - Prob. 1QCh. 16 - Prob. 2QCh. 16 - Prob. 3QCh. 16 - Prob. 4QCh. 16 - Prob. 5QCh. 16 - Prob. 6QCh. 16 - Prob. 7QCh. 16 - Prob. 8QCh. 16 - Prob. 9QCh. 16 - Prob. 10Q
Ch. 16 - Prob. 11QCh. 16 - Prob. 12QCh. 16 - Prob. 13QCh. 16 - Prob. 14QCh. 16 - Prob. 15QCh. 16 - Prob. 16QCh. 16 - Prob. 17QCh. 16 - Prob. 18QCh. 16 - Prob. 19QCh. 16 - Prob. 20QCh. 16 - Prob. 21QCh. 16 - Prob. 22QCh. 16 - Prob. 23QCh. 16 - Prob. 24QCh. 16 - Prob. 25QCh. 16 - Prob. 26QCh. 16 - Prob. 27QCh. 16 - Prob. 28QCh. 16 - Prob. 29QCh. 16 - Prob. 30QCh. 16 - Prob. 31QCh. 16 - Prob. 32QCh. 16 - Prob. 33QCh. 16 - Prob. 34QCh. 16 - Prob. 35QCh. 16 - Prob. 36QCh. 16 - Prob. 37QCh. 16 - Prob. 38QCh. 16 - Prob. 39QCh. 16 - Prob. 40QCh. 16 - Prob. 41QCh. 16 - Prob. 42QCh. 16 - Prob. 43QCh. 16 - Prob. 44QCh. 16 - Prob. 45QCh. 16 - Prob. 46QCh. 16 - Prob. 47QCh. 16 - Prob. 48QCh. 16 - Prob. 49QCh. 16 - Prob. 50QCh. 16 - Prob. 51QCh. 16 - Prob. 52QCh. 16 - Prob. 53QCh. 16 - Prob. 54QCh. 16 - Prob. 55QCh. 16 - Prob. 56QCh. 16 - Prob. 57QCh. 16 - Prob. 58QCh. 16 - Prob. 59QCh. 16 - Prob. 60Q
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- What gives the triple-alpha process its name? Why is it called a process and not a chain or a cycle?arrow_forwardAdd a fourth column to Table 13-1 and write in the atomic mass for each rows fuel element (see Appendix Table A-14). Review the curve of binding energy, Figure 8-15. Explain the trend of fusion time versus fuel atomic mass.arrow_forwardThe nuclear process for fusing helium into carbon is often called the “triple-alpha process.” Why is it called as such, and why must it occur at a much higher temperature than the nuclear process for fusing hydrogen into helium?arrow_forward
- Please don't reroute, will upvote you.arrow_forwardWhy does nuclear fusion only take place in the Sun’s core?arrow_forwardNatural gas (CH.) fuel relcases 50 MJ per kilogram of fuel combusted. The reaction is CH, + 20, CO2 + 2H;0 Calculate the energy released per kilogram of CO2 emitted. [Energy released is Eepe E, where Eris energy released per kilogram of fuel combusted, mf is mass of a kilogram-mole of fuel (CH.), and mr is mass of a kilogram-mole of carbon dioxide (CO2). The Molecular mass of an atom of carbon, hydrogen and oxygen are 12, 1 and 16 respectively.]arrow_forward
- Explain how critical temperature and critical pressure occur. You can also site an example to thoroughly explain.arrow_forward.Explain proton-proton cycle of the energy production in stars using appropriate fusionreactions and schematic figures.arrow_forwardNuclear fusion is a process which releases large amounts of energy and takes place in the core of stars like our Sun. Explain what is meant by nuclear fusion and the conditions necessary for it to take placearrow_forward
- The sun’s energy comes from nuclear reactions that fuse lighter nuclei into heavier ones, releasing energy in the process. The solar fusion process begins when two protons (the nuclei of hydrogen atoms) merge to produce a deuterium nucleus. Deuterium is the “heavy” isotope of hydrogen, with a nucleus consisting of a proton and a neutron. To become deuterium, one of the protons that fused has to turn into a neutron. Our interest for now lies not with the nuclear physics but with the conditions that allow fusion to occur. Before two protons can fuse, they must come into contact. However, the energy required to bring two protons into contact is considerable because the electric potential energy of the two protons increases rapidly as they approach each other. Fusion occurs in the core of the sun because the ultra-high temperature there gives the protons the kinetic energy they need to come together. a. A proton…arrow_forwardThrough nuclear fusion reaction, the Sun and stars produce energy. True or false?arrow_forward(Astronomy) Light thermally emitted from the surface of a typical neutron star indicates that it has a temperature of 1,800,000 K. This temperature is about 300 times the temperature of the photosphere of the sun. This means that each square meter of the surface emits _______ more energy per second in thermal radiation than the photosphere of the sun.arrow_forward
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