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(b) Consider a sample of 235U with a mass of 1000 kg, that is much greater...
I need help with these 4 questions please... Consider a sample of Uranium-235 with a mass...
I need help with these 4 questions please...
Consider a sample of Uranium-235 with a mass of 3 kg. How many Uranium-235 atoms (no units) are in this sample? The Atomic Mass of Uranium-235 is 235.043922 g/mol. Submit Answer Tries 0/8 If each of these Uranium-235 nuclei undergoes nuclear FISSION and 200.6 MeV is released during each fission reaction, how much total energy (in MeV) will be released from 3 kg of Uranium-235? Submit Answer Tries 0/8 Now consider a...
Critical mass Question 1 options: is the minimum mass required to sustain a chain reaction. is...
Critical mass Question 1 options: is the minimum mass required to sustain a chain reaction. is dependent upon both the amount of material and the surface area of the material. can be reduced by surrounding the material with a neutron reflector. all of the above. None of the above. Question 2 (1 point) For a fission reaction to spontaneously take place Question 2 options: the mass of the daughter nuclei must be smaller than the mass of the original nucleus....
(65 pts) Nuclear Fusiorn (a) What is nuclear fusion ? (b) Give an example (different than...
(65 pts) Nuclear Fusiorn (a) What is nuclear fusion ? (b) Give an example (different than those in this problem below) of a nuclear fusion reaction (c) When a tritium nucleon and a deuterium nucleon under a fusion reaction they produce a helium aucleus and a neutron. If the masses of the species are the following tritium: 3.01605 amu deuterium: 20140 amu helium: 4.00260 amu neutron: 1.0089665 amu How much energy (in kJ) will be produced per mole of reaction...
Please help! Thank you so much 6. An object can be electroplated with a layer of...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
1.) Calculate to four significant figures: a) the mass change in kg b) the energy change...
1.) Calculate to four significant figures: a) the mass change in kg b) the energy change in kJ/mol, when a neutron decays to produce a proton and an electron. The neutron, proton & electron masses are 1.67493 × 10-27 kg, 1.67262 × 10-27 kg and 9.10939 × 10-31 kg, respectively. 2.) A chemical reaction of the general type: A → 2B is first-order, with a rate constant of 1.52 × 10-4 s-1. a) Calculate the half-life of A. b) Assuming...
Stars generate energy through nuclear fusion. A fusion reaction is exoergic (i.e., it gives off energy)...
Stars generate energy through nuclear fusion. A fusion reaction is exoergic (i.e., it gives off energy) if the product has a lower rest energy than the original nuclei. The binding energy of a nucleus is defined as the difference between the rest energy that the individual particles would have if they were not bound in a nucleus and the rest energy of the nucleus itself. So, stated another way, fusion reactions are exoergic if the binding energy of the product...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fus...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fusion of 1) Demonstrate that I u of mass (1/12)mC, atom) has an equivalent rest mass of answers Qi, Q2, and Qs in MeV. Be careful with Qi-beware of the leptons! hydrogen in the cores of lower mass main sequence stars such as our Sun. 931.4940954 MeV/c (match at least the first 4 digits past decimal) Calculate the Q value for each step...
a) (15 p) We consider a nuclear reactor of power output P=1000 Megawatt (1000 million watts)...
a) (15 p) We consider a nuclear reactor of power output P=1000 Megawatt (1000 million watts) electric, functioning with Plutonium. It is fueled, initially, with 1000 kg of Plutonium. The nuclear material in question is made of Plutonium nuclei, each 239 consisting in 94 protons and 239-94-145 neutrons, which is denominated by the symbol 94Pu. For thermodynamical rd reasons, only 1/3 of the nuclear energy in the form of heat produced by the reactor, can be converted into electricity. How...
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus...
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus disappears and there appear two new particles: a He-4 nucleus of mass 6.640678x10-27 kg (an "alpha particle" consisting of two protons and two neutrons) and a new nucleus of mass 3.663533 x 10-25 kg (note that the new nucleus has less mass than the original nucleus, and it has two fewer protons and two fewer neutrons). In these calculations, it is very important to...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
I need help with these 4 questions please...
Consider a sample of Uranium-235 with a mass of 3 kg. How many Uranium-235 atoms (no units) are in this sample? The Atomic Mass of Uranium-235 is 235.043922 g/mol. Submit Answer Tries 0/8 If each of these Uranium-235 nuclei undergoes nuclear FISSION and 200.6 MeV is released during each fission reaction, how much total energy (in MeV) will be released from 3 kg of Uranium-235? Submit Answer Tries 0/8 Now consider a...
(65 pts) Nuclear Fusiorn (a) What is nuclear fusion ? (b) Give an example (different than those in this problem below) of a nuclear fusion reaction (c) When a tritium nucleon and a deuterium nucleon under a fusion reaction they produce a helium aucleus and a neutron. If the masses of the species are the following tritium: 3.01605 amu deuterium: 20140 amu helium: 4.00260 amu neutron: 1.0089665 amu How much energy (in kJ) will be produced per mole of reaction...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fusion of 1) Demonstrate that I u of mass (1/12)mC, atom) has an equivalent rest mass of answers Qi, Q2, and Qs in MeV. Be careful with Qi-beware of the leptons! hydrogen in the cores of lower mass main sequence stars such as our Sun. 931.4940954 MeV/c (match at least the first 4 digits past decimal) Calculate the Q value for each step...
a) (15 p) We consider a nuclear reactor of power output P=1000 Megawatt (1000 million watts) electric, functioning with Plutonium. It is fueled, initially, with 1000 kg of Plutonium. The nuclear material in question is made of Plutonium nuclei, each 239 consisting in 94 protons and 239-94-145 neutrons, which is denominated by the symbol 94Pu. For thermodynamical rd reasons, only 1/3 of the nuclear energy in the form of heat produced by the reactor, can be converted into electricity. How...
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus disappears and there appear two new particles: a He-4 nucleus of mass 6.640678x10-27 kg (an "alpha particle" consisting of two protons and two neutrons) and a new nucleus of mass 3.663533 x 10-25 kg (note that the new nucleus has less mass than the original nucleus, and it has two fewer protons and two fewer neutrons). In these calculations, it is very important to...
rack of mass 1500 kg moving at 30 m/s is braked suddenly wit 1000-V. How far does the car travel before stopping? th a constant braking force of 10. A baseball batter hits an incoming 45 m/s fastball. The ball leaves the bat at 55 m/s after a ball-on-bat contact time of 0.025 s. What is the force exerted on a 0.15-kg baseball? (choose + direction) 11. A trapeze artist, with swing, weighs 800 N; he is momentarily held horizontal...
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