atomic Reaction

404 views
324 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
404
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
2
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

atomic Reaction

  1. 1. no reaction, a controlled chain reaction or an uncontrolled chain reaction. Remember that the critical mass of pure uranium-235 is around 60 kg. The uranium-235 used in nuclear reactors is much less pure, so the critical mass will be much higher .
  2. 2. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>Two fuel rods, each containing 5 kg of uranium, are put side by side. </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 1
  3. 3. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>The control rods in a nuclear reactor have been raised so that there is one neutron absorbed by a uranium-235 nucleus for every three neutrons that are released in a fission reaction . </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 2
  4. 4. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>20 fuel rods, each containing 5 kg of uranium, are stacked together </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 3
  5. 5. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>The control rods in a nuclear power station are lowered completely into the reactor. </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 4
  6. 6. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>Two pieces of pure uranium-235, each with a mass of 35 kg, are brought together. </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 5
  7. 7. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>A power station manager suggests transporting fuel rods in groups of four rather than one by one. Each rod = 5kg </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 6
  8. 8. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>All of the neutrons released by the fission of uranium-235 nuclei are absorbed by other uranium-235 nuclei </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 7
  9. 9. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>The fuel rods in the reactor core are moved far apart from each other. </li></ul>Remember that the critical mass of pure uranium-235 is around 60 kg. 8
  10. 10. no reaction, a controlled chain reaction or an uncontrolled chain reaction. <ul><li>None of the neutrons released by the fission of uranium-235 nuclei are absorbed by other uranium-235 nuclei. </li></ul>9

×