Deutrons of 1.51 MeV energy are used to produce the reaction O16(d,α)N14. The alpha particles emitted at 0 o are found to have energy of 3.427 MeV. Calculate the Q-value of the reaction
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- Consider the following a-decay of the Uranium nucleus 236 U → 332Th + a. 90 (a) Show how the mass number (Aa) and atomic number (Za) of the alpha particle are obtained from this equation. (b) Calculate the Q-value (Qa) of the reaction. (c) Calculate the speed va = √2MQ of the alpha particle after it has been ejected from the parent nucleus, in terms of the speed of light c. M = -, mp and ma are the atomic masses (ma+mp) x ma mp of the daugher nucleus and the alpha particle, respectively. (d) Calculate the classical turning radius Re= 2Zpe²/Qa, where Zp is the atomic number of the daughter nucleus, and e² = 1.44 MeV. fm. (e) Calculate the decay probability Pa that the alpha particle will tunnel through the barrier. HINT: In calculating the probability, use the fact that ħc=197.327 MeV fm. The formula to use is given on page 5.Consider the nuclear fusion reaction 3H+ 'He > 'H + 'He. Part A Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. B = MeV Submit Previous Answers Request Answer Part B Compute the binding energy of the He. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Previous Answers Request Answer Part C Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Request Answer Part D Compute the binding energy of the "He. Express your answer in mega-electron volts to three significant figures. B = MeVPlease answer this within 30 mins ! I will upvote !
- Suppose that our Sun, of mass 1.99 x 1030 kg, consists entirely of hydrogen and that the dominant energy-releasing fusion reaction 4 H He 2e+ + 2v + y involves the "burning" of hydrogen into helium with a Q-value of 26.73 MeV. If the total power output of the Sun is assumed to remain constant at 3.9 x 1026 W, estimate the number of years for all of the hydrogen to be used up.An old campfire is uncovered during an archaeological dig. Its charcoal is found to contain less than 1/1000 the normal amount of 14C. Find the minimum age (in years) of the charcoal. Carbon-14 has a half-life of 5730 years which means half of it will be gone after 5730 years. You may find the equality 210 = 1024 to be useful.A beam of 8.47-MeV protons is incident on a target of 27/13 Al. Those protons that collide produce the reaction shown below. p + 27 13 Al → 27 14 Si + n ( 27 14 Si has a mass of 26.986721 u.) Neglecting any recoil of the product nucleus, determine the kinetic energy of the emerging neutrons. Answer:_____MeV Sorry the formatting is kinda off, im not sure how to fix it. Thank you!
- A neutron generator uses an α source, such as radium, tobombard beryllium, inducing the reaction4 He + 9Be → 12C + n . Such neutron sources are called RaBe sources, or PuBe sources if they use plutonium to get the α s. Calculate the energy output of the reaction in MeV.Determine the number of protons in the missing fragment of the reaction shown below: In+25U ?+135 Xe + 12n+ 126.5 MeV 54 Express your answer as an integer. Temptates Symbols undo rego Teset keyboard shortcuts tlelp Z =Consider the fission reaction 141 n + U -> 235, 92U syXe + 92 38Sr +3n The masses of the components are 235 235.04393 세 xe| 140.여 2678 92 5 91.911 038 n 1.00 866 U Find the energy released in MeV Use the editor to format your answer
- One of the fusion reactions that takes place as a star ages is called the triple alpha process. 3 42He → 126C Calculate the mass defect (in u) and the energy produced (in MeV) each time the reaction takes place.Each fusion reaction of deuterium (2H) and tritium (3H) releases about 20.0 MeV. The molar mass of tritium is approximately 3.02 g. What mass m of tritium is needed to create 1012 J of energy, the same as that released by exploding 250 tons of TNT? Assume that an endless supply of deuterium is available.