The relationship between the half-life time and the rate constant of a zero order reaction is given by a. t1/2 = In 2/k b. t y = k Co C. t 2 = Co / (2k) d. t 2 = 1/(k Co) e. t ½ In (k co)
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- By READING the N vs t graph shown below, determine No & the half-life. N (x10¹ atoms) 120 90. 60. 30. 1 2 3 4 5 6 7 8 9 10 t(y) No = half-life = atoms58. . Radiation treatment of prostate cancer. In many cases, BIO prostate cancer is treated by implanting 60 to 100 small seeds of radioactive material into the tumor. The energy released from the decays kills the tumor. One isotope that is used (there are others) is palladium (10°Pd), with a half-life of 17 days. If a typical grain contains 0.250 g of 10°Pd, (a) what is its initial activity rate in Bq, and (b) what is the rate 68 days later?Question 04 The moderator temperature coefficient for a reactor is -8.2 pcm/ F. Calculate the reactivity defect that results from a temperature decrease of 5° F. Px = (Ax)(ax)
- in this nucluar reaction ¹¹B(d,α)⁹Be . if the Deuterium fall down with kinetic energy 2.5 Mev , while alpha's particles start moving with kinetic energy 8.5 Mev out by angle 90 degree , calculate : a- calculate value of Q for this reaction then note is it Exothermic or Endothermic reaction. b- calculate the Critical energy of this reaction .9. A rock that contains 1.2x10-12 mol of 232Th (t1/2 = 1.4x1010 yr) has 4.2x105 fission tracks, each track representing the fission of one atom of 232Th. How old is the rock?Part A Calculate (in MeV) the total binding energy for 40 Ar. Express your answer in mega-electron volts to four significant figures. ? MeV Submit Previous Answers Request Answer X Incorrect; Try Again; 7 attempts remaining Part B Calculate (in MeV) the binding energy per nucleon for 40 Ar. Express your answer in mega-electron volts to three significant figures. Ην ΑΣφ ? Var = MeV Submit Request Answer Part C Calculate (in MeV) the total binding energy for 40K. Express your answer in mega-electron volts to four significant figures. nνα ΑΣφ ? BK = MeV Submit Previous Answers Request Answer
- 32NE decays by B decay. Which of these is the correct reaction? 10 Select one: of 1 O a. 3 Ne B + 3F 10 1. tion O b.Ne → °B+ 3}F 10 O c. Ne → _°ß+ {Na B+Na. 32 11 10 O d. Ne B+ Na 33 Na 08 10 2 The half-life of 2 U is 70 years. How long would it take for all but 232Problem A You have a 5.7 mol pure sample of an unknown material. After 2 h, you discover that 44% has decayed. Determine the half-life, decay constant, mean life, & initial decay rate. Also determine what the decay rate is at 2 h. T1/2= λ = T= Ro= R= h-1 decays/h decays/h1