Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Nuclear rods chemistry help!?
What is the role of the control rods in a nuclear reactor? (Select all that apply.)
a produce neutrons for the fission reaction
b absorb neutrons from the fusion reaction
c absorb neutrons from the fission reaction
d produce neutrons for the fusion reaction
e increase the speed of the fission reaction
f decrease the speed of the fusion reaction
3 Answers
- curious georgeLv 51 decade agoFavorite Answer
Control rods absorb neutrons from the fission reaction. We don't have any reactors that use fusion. Fusion is not controlled by controlling neutrons.
Answer c
Inserting control rods absorbs more neutrons, thus decreasing the number of neutrons available to cause fission and reducing the fission RATE. Withdrawing control rods does just the opposite and allows the fission RATE to increase, Thus answers e and f could be correct IF 'the speed of fission" means the same as "the RATE of fission'. Answers e and f are poorly worded
Source(s): I was a licensed Senior Reactor Operator for many years - ?Lv 41 decade ago
Reactors currently use fission to split the atom by bombarding them with neutrons, which releases more neutrons. Fusion reactors are still experimental. When the control rods are fully in place they stop the reaction, so they must be absorbing the neutrons to keep them from splitting more atoms. Looks like the best answer is c.
- science teacherLv 71 decade ago
Control rods absorb neutrons to keep the reaction under control in the fission reaction. They also decrease the speed of the fission reaction.
Only answer is C
