If a reactor produces an average power of 1000 MW for a year, a. How much U-235 is used up assuming 200 MeV are released per fission and the  efficiency is 33.3%?  b. Also, how much mass is turned into energy?  Clearly show all your work and reasoning.

Describe the effect of the shielding on the gamma rays, neutrons and neutrinos that reach it from the core of the reactor. Also explain why the shielding material becomes radioactive as the reactor ages

Constants I Periodic Table (Figure 1) is the graph of binding energy per nuclon. Part A Use the graph to estimate the total energy released if a nucleus with mass number 240 fissions into two nuclei with mass number 120. Express your answer in mega-electron volts to one significant figure. ΑΣφ ? E = MeV Submit Request Answer Figure 1 of 1 Provide Feedback Next > Binding energy (MeV) per nucleon 10- Maximum 8.8 MeV per nucleon 9 8 7 6 5 4 3 1 50 100 150 200 250 Mass number, A

C Exercise 29.23 Part A Calculate the time required for a sample of radioactive tritium to lose 79.0 % of its activity. (Tritium has a half-life of 12.3 years.) V t = 28.6 Submit ΑΣΦ Provide Feedback Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Review your calculations and make sure you round to 3 significant figures in the last step. H ? Q Search years P Pearson W