It is estimated that the Chernobyl disaster released 6.0 MCi of 137 Cs into the environment. Calculate the mass of 137 C's released.
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Q: 238.050784 u, 234.043593 u and 4.002602 u respectively.
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- according to the reaction equation : 21H + 21H → 32He + 10n calculate the binding energy for the nucleus of the helium isotope. knowing that the masses of 21H = 2.0141 amu 32He = 3.0160 amu proton = 1.0073 amu neutron = 1.0087 amuCalculate the energy released in the following nuclear fission reaction: 239Pu+n→98Tc+138Sb+4n239Pu+n→98Tc+138Sb+4n Recall that the atomic masses are 239 Pu239 Pu = 239.052157 u u, 98 Tc 98Tc = 97.907215 uu, 138 Sb 138Sb = 137.940793uSuppose 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.
- On absorption of a single neutron, plutonium Pu-239 can undergo fission into xenon Xe-134 plus zirconium Zr-103 plus three neutrons. The masses of these nuclei are, mpu-239 = 239.052 amu, mxe-134 = 133.905 amu, and mzr-103 = 102.927 amu. Calculate the energy given off in this nuclear reaction. Back Alt+Left arrowThe theory of nuclear astrophysics is that all the heavy elements like uranium are formed in the interior of massive stars. These stars eventually explode, releasing the elements into space. If we assume that at the time of explosion there were equal amounts of 235U and 238U, 235 how long ago were the elements that formed our Earth released, given that the present U/238U ratio is 0.007? (The half-lives of 235u and 238U are 0.70 × 10° yr and 4.47 x 10° yr, respectively.) yearsOn absorption of a single neutron, plutonium Pu-239 can undergo fission into xenon Xe-134 plus zirconium Zr-103 plus three neutrons. The masses of these nuclei are, mpu-239 = 239.052 amu, mxe-134 = 133.905 amu, and mzr-103 = 102.927 amu. Calculate the energy given off in this nuclear reaction.
- Suppose enriched uranium containing 3.70% of the fissionable isotope 23592U is used as fuel for a ship. The water exerts an average friction force of magnitude 2.50 105 N on the ship. How far can the ship travel per kilogram of fuel? Assume that the energy released per fission event is 208 MeV and the ship's engine has an efficiency of 20.0%. please answer should be in kmOne 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.